📝 put docs into enriched tarball

dev_tools/release/release.sh

@@ -69,9 +69,7 @@ tar -czf $target_file \
         --exclude .gitignore \
         --exclude .travis.yml \
         --exclude travis \
-        --exclude mkdocs.yml \
         --exclude dev_tools \
-        --exclude docs \
         --exclude vendor/phing \
         --exclude vendor/simplepie/simplepie/tests \
     libretime-${suffix}