Initial import of Template:WebExtAPISidebar
Initial import of Template:WebExtAPISidebar

https://developer.mozilla.org/en-US/docs/Template:WebExtAPISidebar

Contributors (by MDN username):
* Jeremie
* wbamberg

jpmedley/kumascript,a2sheppy/kumascript,jpmedley/kumascript,a2sheppy/kumascript