Add backticks [ci skip]

activerecord/CHANGELOG.md

@@ -24,7 +24,7 @@
 
     *Ryuta Kamizono*
 
-*   Query cache was unavailable when entering the ActiveRecord::Base.cache block
+*   Query cache was unavailable when entering the `ActiveRecord::Base.cache` block
     without being connected.
 
     *Tsukasa Oishi*
@@ -58,7 +58,7 @@
     *bogdanvlviv*
 
 *   Fix destroying existing object does not work well when optimistic locking enabled and
-    `locking column` is null in the database.
+    `locking_column` is null in the database.
 
     *bogdanvlviv*
 

railties/CHANGELOG.md

@@ -16,7 +16,7 @@
 
     *Yuji Yaginuma*
 
-*   Added a shared section to config/database.yml that will be loaded for all environments.
+*   Added a shared section to `config/database.yml` that will be loaded for all environments.
 
     *Pierre Schambacher*