Added some github-specific keywords

https://help.github.com/articles/repository-metadata-on-github-pages
https://github.com/blog/1797-repository-metadata-and-plugin-support-for-github-pages
migrating from @tomer to @MozillaIsrael
Merge pull request #1 from tomer/migrate-repo-to-mozillaisrael

Migrate repo to mozillaisrael