clustering_with_ddev.md: use ddev/ddev-solr

Author: adriendupuis

docs/infrastructure_and_maintenance/clustering/clustering_with_ddev.md

@@ -72,7 +72,7 @@ The following sequence of commands:
 
 1. Adds the Solr container
 2. Sets Solr as the search engine
-3. Start the DDEV cluster to creates core config by combining default files and provided files 
+3. Start the DDEV cluster to creates core config by combining default files and those provided by Ibexa 
 4. Restarts the DDEV cluster and clears application cache
 5. Reindexes the content