AMBARI-23945. Infra Solr migration - Update README.md
diff --git a/ambari-infra-solr-client/README.md b/ambari-infra-solr-client/README.md
index b455416..b4c4614 100644
--- a/ambari-infra-solr-client/README.md
+++ b/ambari-infra-solr-client/README.md
@@ -65,6 +65,7 @@
##### Prerequisites:
- Upgrade Ambari server
+- Make sure Solrs are up and running
- Do NOT restart Infra Solr after Ambari server upgrade (if you do, see [this](#if-solr-restarted))
- There will be a small time window between backup collections and deleting collections - Ranger plugins will operate during that time, that means you can loose data during that time period. If that means a big problem in order to avoid that, you can enable to auudit to HDFS for that time.
@@ -1053,4 +1054,4 @@
--skip-logsearch-upgrade skip ambari-logsearch-portal and ambari-logsearch-logfeeder package upgrades
--skip-warnings skip warnings at check-shards step
-h, --help print help
-```
\ No newline at end of file
+```
