Update CHANGES.md

Author: apkar

CHANGES.md

@@ -3,9 +3,9 @@
 
 ### 1.8.2
 
-* [212](http://github.com/FoundationDB/fdb-document-layer/pull/212) - Avoids deadlock in connection handler over failures
-* [212](http://github.com/FoundationDB/fdb-document-layer/pull/212) - Add new connection rate metrics
-* [212](http://github.com/FoundationDB/fdb-document-layer/pull/212) - Publish CPU metrics at high priority, so we wont miss metrics under load
+* [#212](http://github.com/FoundationDB/fdb-document-layer/pull/212) - Avoids deadlock in connection handler over failures
+* [#212](http://github.com/FoundationDB/fdb-document-layer/pull/212) - Add new connection rate metrics
+* [#212](http://github.com/FoundationDB/fdb-document-layer/pull/212) - Publish CPU metrics at high priority, so we wont miss metrics under load
 
 ### 1.8.1