Add links to corresponding issues

docs/known-issues.rst

@@ -4,7 +4,7 @@ Known Issues
 -  Closing the snippets window with the ``x`` does not update toolbar icon
    and menu item. And as a result of that the state is not remembered
    properly. I need to find the notification that is send to the window
-   on clicking the ``x``.
+   on clicking the ``x``  (`#26`_).
 
 -  When a library is not alphabetic sorted, and you move an item up or
    down, this is slow. This is because the ``Sort``-field of all the
@@ -13,3 +13,5 @@ Known Issues
 -  The icon on the docking tab is inverted for some strange reason.
 
 -  When there is no write-access to the database, this is not properly handled.
+
+.. _#26: https://github.com/ffes/nppsnippets/issues/26

docs/wishlist.rst

@@ -16,7 +16,7 @@ The wish list is in random order.
 -  Remember the last select snippet from the list. Useful when switching
    between different languages.
 
--  Add support for multiple selections.
+-  Add support for multiple selections (`#2`_).
 
 -  Easier sorting for non-alphabetic libraries. (move to top, move to
    bottom, dragging?)
@@ -31,4 +31,5 @@ The wish list is in random order.
 -  Libraries can be hard to find when there is something wrong with the
    languages that are set for this library.
 
+.. _#2: https://github.com/ffes/nppsnippets/issues/2
 .. _#7: https://github.com/ffes/nppsnippets/issues/7