Add links from GDScript keywords table to relevant sections

Author: tetrapod00

tutorials/scripting/gdscript/gdscript_basics.rst

@@ -184,17 +184,17 @@ in case you want to take a look under the hood.
 +------------+---------------------------------------------------------------------------------------------------------------------------------------------------+
 | super      | Resolves the scope of the parent method. See `Inheritance`_.                                                                                      |
 +------------+---------------------------------------------------------------------------------------------------------------------------------------------------+
-| signal     | Defines a signal.                                                                                                                                 |
+| signal     | Defines a signal. See `Signals`_.                                                                                                                 |
 +------------+---------------------------------------------------------------------------------------------------------------------------------------------------+
-| func       | Defines a function.                                                                                                                               |
+| func       | Defines a function.  See `Functions`_.                                                                                                            |
 +------------+---------------------------------------------------------------------------------------------------------------------------------------------------+
 | static     | Defines a static function or a static member variable.                                                                                            |
 +------------+---------------------------------------------------------------------------------------------------------------------------------------------------+
-| const      | Defines a constant.                                                                                                                               |
+| const      | Defines a constant. See `Constants`_.                                                                                                             |
 +------------+---------------------------------------------------------------------------------------------------------------------------------------------------+
-| enum       | Defines an enum.                                                                                                                                  |
+| enum       | Defines an enum. See `Enums`_.                                                                                                                    |
 +------------+---------------------------------------------------------------------------------------------------------------------------------------------------+
-| var        | Defines a variable.                                                                                                                               |
+| var        | Defines a variable. See `Variables`_.                                                                                                             |
 +------------+---------------------------------------------------------------------------------------------------------------------------------------------------+
 | breakpoint | Editor helper for debugger breakpoints. Unlike breakpoints created by clicking in the gutter, ``breakpoint`` is stored in the script itself.      |
 |            | This makes it persistent across different machines when using version control.                                                                    |