Merge pull request #7 from yintrust/dependabot/bundler/rexml-3.4.2

chore(deps): bump rexml from 3.3.9 to 3.4.2

Author: howiezhao

Gemfile.lock

@@ -58,7 +58,7 @@ GEM
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.3.9)
+    rexml (3.4.2)
     rouge (3.21.0)
     safe_yaml (1.0.5)
     sassc (2.4.0)