[css-text-3] Link issues

Author: fantasai

css-text-3/Overview.bs

@@ -5409,9 +5409,9 @@ Space-Discarding Unicode Characters</h2>
       <td>CJK Unified Ideographs Extension G
   </table>
 
-  ISSUE: Do we include enclosed ideographs?
+  ISSUE(4992): Do we include enclosed ideographs?
 
-  ISSUE: Do we include symbol sets like Yijing Hexagrams / Counting Rods / etc.?
+  ISSUE(4993): Do we include symbol sets like Yijing Hexagrams / Counting Rods / etc.?
 
   For future revisions of [[UNICODE]],
   any new block whose contents comprise at least 50% codepoints belonging to the