update README

README.md

@@ -2,7 +2,18 @@
 
 ## Quickstart
 
+This will setup a local ckan instance, including the odata extension and all needed depdencies (solr, db, redis)
+
 * Install latest version of docker and docker-compose
 * `bin/start.sh`
 * `bin/initialize_db.sh`
 
+## Installing the ckan extension on an existing ckan project
+
+If you have an existing ckan installation and just want to install the odata plugin:
+
+* Install the package (should run inside your ckan installations virtualenv):
+  * `pip install -e 'git+https://github.com/OriHoch/data4dappl.git#egg=ckanext-odata_org_il&subdirectory=ckan/ckanext-odata_org_il'`
+* Edit the configuration (E.g. /etc/ckan/default/development.ini)
+  * add odata_org_il to ckan.plugins
+* restart ckan