Inherit rubocop config from discourse repo

Inherit rubocop config from discourse repo

diff --git a/.gitignore b/.gitignore
index 8335aab..ca06557 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,5 @@ auto_generated
 Gemfile.lock
 .DS_Store
 *.swp
+
+.rubocop-https---raw-githubusercontent-com-discourse-discourse-master--rubocop-yml
diff --git a/.rubocop.yml b/.rubocop.yml
new file mode 100644
index 0000000..0ca7eff
--- /dev/null
+++ b/.rubocop.yml
@@ -0,0 +1 @@
+inherit_from: https://raw.githubusercontent.com/discourse/discourse/master/.rubocop.yml

GitHub sha: 2edd11fd