Update documentation to reflect quickstart

Adds quickstart.md from the kompose.io site as well as incorporates
changes so that you can update the index page of Kompose.io via
quickstart.md

script/sync-docs.sh

@@ -50,9 +50,12 @@ permalink: /$name/
 done
 cd ..
 
-# remove README.md from docs folder as it isn't relevant
+# Remove README.md from docs folder as it isn't relevant
 rm docs/README.md
 
+# Use quickstart.md instead as the main index page
+mv docs/quickstart.md index.md
+
 # add relevant user information
 git config user.name "$DOCS_USER"