Customize.md

+Customized version here in git in branch `fairteaching`.
+
+after doing changes do in `~/greenlight`
+
+```
+cp ~/greenlight-orig/.env .
+cp -r ~/greenlight-orig/db .
+./scripts/image_build.sh bigbluebutton/greenlight release-v2
+docker-compose down
+docker-compose up -d
+```
+
+`bigbluebutton/greenlight` is the new image name which has been built.
+
+See http://docs.bigbluebutton.org/greenlight/gl-customize.html#restart-greenlight
+
+Language file: ~/greenlight/config/locales/de_DE.yml
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