Surrounds boolean false with code tag

(cherry picked from commit aa7ce12beee6b30d9fa24c1862a95f89f7b1d02c)

doc/classes/Vector2.xml

@@ -172,7 +172,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Returns [code]true[/code] if the vector is normalized, and false otherwise.
+				Returns [code]true[/code] if the vector is normalized, [code]false[/code] otherwise.
 			</description>
 		</method>
 		<method name="length">

doc/classes/Vector3.xml

@@ -147,7 +147,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Returns [code]true[/code] if the vector is normalized, and false otherwise.
+				Returns [code]true[/code] if the vector is normalized, [code]false[/code] otherwise.
 			</description>
 		</method>
 		<method name="length">