Update .env.example

.env.example

@@ -21,6 +21,9 @@ LOG_LEVEL="INFO"
 THREADS=2
 PROCESSES=8
 USE_EMBEDDINGS_WORKER=False
+OPENSEARCH_JAVA_OPTS=""
+SIMILARITY_THRESHOLD=0.9
+KNN_SEARCH_K=30
 
 ##### Seta secrets  ####
 
@@ -52,6 +55,22 @@ SETA_IDENTITY_PROVIDERS="ECAS"
 
 #### Docker services  #######
 
+#Use Docker internal volumes or define the local path to be mounted. Empty string means to use internal Docker volumes
+# postgres-data volume is used or postgres-data folder should exist 
+# opensearch-data folder should exist inside this path 
+# OPENSEARCH_PATH=/STORAGE/seta/
+# postgres-data folder should exist inside this path 
+# POSTGRES_PATH=/STORAGE/seta/
+# models-data folder should exist inside this path 
+# MODELS_PATH=/STORAGE/seta/
+
+# opensearch-data volume is used 
+OPENSEARCH_PATH=
+# postgres-data volume is used 
+POSTGRES_PATH=
+# models-data volume is used 
+MODELS_PATH=
+
 # ElasticSearch hostname and port
 ES_HOST="opensearch:9200"