update readme to include 5.5.0 version
@@ -20,7 +20,7 @@ Then execute the compiled store procedure by using the exec function in the Orac
sqlplus> exec WSO2_TOKEN_CLEANUP_SP();
```
-! Starting from IS 5.7.0 following indexes should be inplace to avoid deadlock situation cause by the foreign keys
+! Starting from IS 5.5.0 following indexes should be inplace to avoid deadlock situation cause by the foreign keys. Make sure to add these indexes if they are not already present
```
CREATE INDEX IDX_OROR_TID ON IDN_OIDC_REQ_OBJECT_REFERENCE(TOKEN_ID);
CREATE INDEX IDX_OROR_CID ON IDN_OIDC_REQ_OBJECT_REFERENCE(CODE_ID);
