Update README.md

README.md

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 # Grafana-keycloak-integation
-keycloak Generic oauth to te grafana instance , you can perform OIDC and role based access control like admin, editor, viewer to the grafana with keycloak and you can manage entire organization security mechanism in single keycloak instance
+keycloak Generic oauth to the grafana instance , you can perform OIDC and role based access control like admin, editor, viewer to the grafana with keycloak and you can manage entire organization security mechanism in single keycloak instance
+install docker Docker and docker-compose, 
+docker-version 20.10.14, build a224086.
+docker-compose version 1.29.2, build 5becea4c.
+Use keycloak local instance or cloud instance and edit the .ini file and docker-compose file according to your keycloak configuration.