Fix typos and inconsistencies in classref

* Typo fixes.
* Navigation agent's `velocity_computed` signal is not emitted by
  `set_velocity`, but at the end of that frame if `set_velocity` is
  called.
* Simplify link in navigation agent's `avoidance_enabled` description.
* Unify `navigation_layers` description across `NavigationAgent{2,3}D`.
* Unify `is_normalized()` description across `Vector2`, `Vector3`, and
  `Vector4`

(cherry picked from commit ff97c481d367a8c4e72b6548095ce33c98e4ef33)

7 files changed, 10 insertions, 10 deletions

diff --git a/doc/classes/NavigationAgent2D.xml b/doc/classes/NavigationAgent2D.xml
index 06ce32597f..4433e73547 100644
--- a/doc/classes/NavigationAgent2D.xml
+++ b/doc/classes/NavigationAgent2D.xml
@@ -109,7 +109,7 @@
 	</methods>
 	<members>
 		<member name="avoidance_enabled" type="bool" setter="set_avoidance_enabled" getter="get_avoidance_enabled" default="false">
-			If [code]true[/code] the agent is registered for an RVO avoidance callback on the [NavigationServer2D]. When [method NavigationAgent2D.set_velocity] is used and the processing is completed a [code]safe_velocity[/code] Vector2 is received with a signal connection to [signal velocity_computed]. Avoidance processing with many registered agents has a significant performance cost and should only be enabled on agents that currently require it.
+			If [code]true[/code] the agent is registered for an RVO avoidance callback on the [NavigationServer2D]. When [method set_velocity] is used and the processing is completed a [code]safe_velocity[/code] Vector2 is received with a signal connection to [signal velocity_computed]. Avoidance processing with many registered agents has a significant performance cost and should only be enabled on agents that currently require it.
 		</member>
 		<member name="debug_enabled" type="bool" setter="set_debug_enabled" getter="get_debug_enabled" default="false">
 			If [code]true[/code] shows debug visuals for this agent.
@@ -193,7 +193,7 @@
 		<signal name="velocity_computed">
 			<param index="0" name="safe_velocity" type="Vector2" />
 			<description>
-				Notifies when the collision avoidance velocity is calculated. Emitted by [method set_velocity]. Only emitted when [member avoidance_enabled] is true.
+				Notifies when the collision avoidance velocity is calculated. Emitted at the end of the physics frame in which [method set_velocity] is called. Only emitted when [member avoidance_enabled] is true.
 			</description>
 		</signal>
 		<signal name="waypoint_reached">
diff --git a/doc/classes/NavigationAgent3D.xml b/doc/classes/NavigationAgent3D.xml
index d2151773da..962573ea5a 100644
--- a/doc/classes/NavigationAgent3D.xml
+++ b/doc/classes/NavigationAgent3D.xml
@@ -112,7 +112,7 @@
 			The NavigationAgent height offset is subtracted from the y-axis value of any vector path position for this NavigationAgent. The NavigationAgent height offset does not change or influence the navigation mesh or pathfinding query result. Additional navigation maps that use regions with navigation meshes that the developer baked with appropriate agent radius or height values are required to support different-sized agents.
 		</member>
 		<member name="avoidance_enabled" type="bool" setter="set_avoidance_enabled" getter="get_avoidance_enabled" default="false">
-			If [code]true[/code] the agent is registered for an RVO avoidance callback on the [NavigationServer3D]. When [method NavigationAgent3D.set_velocity] is used and the processing is completed a [code]safe_velocity[/code] Vector3 is received with a signal connection to [signal velocity_computed]. Avoidance processing with many registered agents has a significant performance cost and should only be enabled on agents that currently require it.
+			If [code]true[/code] the agent is registered for an RVO avoidance callback on the [NavigationServer3D]. When [method set_velocity] is used and the processing is completed a [code]safe_velocity[/code] Vector3 is received with a signal connection to [signal velocity_computed]. Avoidance processing with many registered agents has a significant performance cost and should only be enabled on agents that currently require it.
 		</member>
 		<member name="debug_enabled" type="bool" setter="set_debug_enabled" getter="get_debug_enabled" default="false">
 			If [code]true[/code] shows debug visuals for this agent.
@@ -136,7 +136,7 @@
 			The maximum speed that an agent can move.
 		</member>
 		<member name="navigation_layers" type="int" setter="set_navigation_layers" getter="get_navigation_layers" default="1">
-			A bitfield determining what navigation layers of navigation regions this NavigationAgent will use to calculate path. Changing it runtime will clear current navigation path and generate new one, according to new navigation layers.
+			A bitfield determining what navigation layers of navigation regions this agent will use to calculate path. Changing it runtime will clear current navigation path and generate new one, according to new navigation layers.
 		</member>
 		<member name="neighbor_distance" type="float" setter="set_neighbor_distance" getter="get_neighbor_distance" default="50.0">
 			The distance to search for other agents.
@@ -196,7 +196,7 @@
 		<signal name="velocity_computed">
 			<param index="0" name="safe_velocity" type="Vector3" />
 			<description>
-				Notifies when the collision avoidance velocity is calculated. Emitted by [method set_velocity]. Only emitted when [member avoidance_enabled] is true.
+				Notifies when the collision avoidance velocity is calculated. Emitted at the end of the physics frame in which [method set_velocity] is called. Only emitted when [member avoidance_enabled] is true.
 			</description>
 		</signal>
 		<signal name="waypoint_reached">
diff --git a/doc/classes/RenderingServer.xml b/doc/classes/RenderingServer.xml
index e5ab3271dc..2ba8e40ce2 100644
--- a/doc/classes/RenderingServer.xml
+++ b/doc/classes/RenderingServer.xml
@@ -587,7 +587,7 @@
 		<method name="canvas_light_occluder_create">
 			<return type="RID" />
 			<description>
-				Creates a light occluder and adds it to the RenderingServer. It can be accessed with the RID that is returned. This RID will be used in all [code]canvas_light_ocluder_*[/code] RenderingServer functions.
+				Creates a light occluder and adds it to the RenderingServer. It can be accessed with the RID that is returned. This RID will be used in all [code]canvas_light_occluder_*[/code] RenderingServer functions.
 				Once finished with your RID, you will want to free the RID using the RenderingServer's [method free_rid] static method.
 			</description>
 		</method>
diff --git a/doc/classes/TextServer.xml b/doc/classes/TextServer.xml
index ad37cf5c86..6d71578488 100644
--- a/doc/classes/TextServer.xml
+++ b/doc/classes/TextServer.xml
@@ -1154,7 +1154,7 @@
 			<param index="1" name="width" type="float" />
 			<param index="2" name="jst_flags" type="int" enum="TextServer.JustificationFlag" default="3" />
 			<description>
-				Adjusts text with to fit to specified width, returns new text width.
+				Adjusts text width to fit to specified width, returns new text width.
 			</description>
 		</method>
 		<method name="shaped_text_get_ascent" qualifiers="const">
diff --git a/doc/classes/Vector2.xml b/doc/classes/Vector2.xml
index 8b48bd4c88..fe85ad7df6 100644
--- a/doc/classes/Vector2.xml
+++ b/doc/classes/Vector2.xml
@@ -226,7 +226,7 @@
 		<method name="is_normalized" qualifiers="const">
 			<return type="bool" />
 			<description>
-				Returns [code]true[/code] if the vector is normalized, [code]false[/code] otherwise.
+				Returns [code]true[/code] if the vector is normalized, i.e. its length is approximately equal to 1.
 			</description>
 		</method>
 		<method name="is_zero_approx" qualifiers="const">
diff --git a/doc/classes/Vector3.xml b/doc/classes/Vector3.xml
index 91553c3acd..2f55e6a2c6 100644
--- a/doc/classes/Vector3.xml
+++ b/doc/classes/Vector3.xml
@@ -194,7 +194,7 @@
 		<method name="is_normalized" qualifiers="const">
 			<return type="bool" />
 			<description>
-				Returns [code]true[/code] if the vector is [method normalized], [code]false[/code] otherwise.
+				Returns [code]true[/code] if the vector is normalized, i.e. its length is approximately equal to 1.
 			</description>
 		</method>
 		<method name="is_zero_approx" qualifiers="const">
diff --git a/doc/classes/Vector4.xml b/doc/classes/Vector4.xml
index 880e6e4e19..7f71dc23ec 100644
--- a/doc/classes/Vector4.xml
+++ b/doc/classes/Vector4.xml
@@ -145,7 +145,7 @@
 		<method name="is_normalized" qualifiers="const">
 			<return type="bool" />
 			<description>
-				Returns [code]true[/code] if the vector is normalized, i.e. its length is equal to 1.
+				Returns [code]true[/code] if the vector is normalized, i.e. its length is approximately equal to 1.
 			</description>
 		</method>
 		<method name="is_zero_approx" qualifiers="const">