.gitignore in ghost_adapter-0.2.3 vs .gitignore in ghost_adapter-0.3.0

@@ -6,5 +6,11 @@
 /coverage/
 /pkg/
 /spec/reports/
 /tmp/
 .byebug_history
+
+# for a library or gem, you might want to ignore these files since the code is
+# intended to run in multiple environments; otherwise, check them in:
+**/*Gemfile.lock
+.ruby-version
+.ruby-gemset