Merge pull request #3 from jnareb/dependabot/bundler/docs/rexml-3.2.5

Bump rexml from 3.2.4 to 3.2.5 in /docs following dependabot recommendation

Author: jnareb

docs/Gemfile.lock

@@ -221,7 +221,7 @@ GEM
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.4)
+    rexml (3.2.5)
     rouge (3.19.0)
     ruby-enum (0.8.0)
       i18n