Update index creation documentation with correct settings for NextCloud

CloudronManifest.json

@@ -25,7 +25,7 @@
   ],
   "minBoxVersion": "7.0.0",
   "memoryLimit": 4294967296,
-  "postInstallMessage": "Elasticsearch is now installed and available for internal use only.\n\nConnection Information:\n- REST API: ```http://localhost:9200``` (from within other Cloudron apps)\n- Transport Protocol: port ```9300``` (for Elasticsearch clients)\n\nAuthentication:\n- Username: ```elastic```\n- Password: A secure random password has been generated and stored in ``/app/data/credentials.txt```.\n\nThe password can be retrieved from:\n1. The app logs\n2. By accessing the app container\n3. The file at /app/data/credentials.txt\n\nNote: SSL is disabled for HTTP connections for compatibility with most client applications.",
+  "postInstallMessage": "Elasticsearch is now installed and available for internal use only.\n\nConnection Information:\n- REST API: ```http://localhost:9200``` (from within other Cloudron apps)\n- Transport Protocol: port ```9300``` (for Elasticsearch clients)\n\nAuthentication:\n- Username: ```elastic```\n- Password: A secure random password has been generated and stored in ```/app/data/credentials.txt```.\n\nThe password can be retrieved from:\n1. The app logs\n2. By accessing the app container\n3. The file at ```/app/data/credentials.txt```\n\n### Important: Creating Indices\nBefore using Elasticsearch with applications like NextCloud, you need to create the necessary indices.\n\nFor NextCloud FullTextSearch:\n```\ncurl -X PUT \"http://elastic:PASSWORD@IPADDRESS:9200/nextcloud\" -H 'Content-Type: application/json' -d'\n{\n  \"settings\": {\n    \"index\": {\n      \"number_of_shards\": 1,\n      \"number_of_replicas\": 0,\n      \"refresh_interval\": \"10s\"\n    }\n  }\n}\n'\n```\nReplace PASSWORD with your elastic user password and IPADDRESS with the Elasticsearch container's IP address.\n\nNote: SSL is disabled for HTTP connections for compatibility with most client applications.",
   "multiDomain": false,
   "tcpPorts": {
     "9300": {

README.md

@@ -46,6 +46,29 @@ Example connection using cURL:
 curl -u elastic:<password> http://localhost:9200
 ```
 
+### Setting up Indices
+
+**Important:** Before using Elasticsearch with apps like NextCloud, you need to create the necessary indices.
+
+For NextCloud FullTextSearch:
+
+```bash
+# Replace with your actual Elasticsearch IP address and password
+curl -X PUT "http://elastic:PASSWORD@IPADDRESS:9200/nextcloud" -H 'Content-Type: application/json' -d'
+{
+  "settings": {
+    "index": {
+      "number_of_shards": 1,
+      "number_of_replicas": 0,
+      "refresh_interval": "10s"
+    }
+  }
+}
+'
+```
+
+You can get the IP address from the Cloudron admin panel or by using the `cloudron status` command. The password is stored in `/app/data/credentials.txt`.
+
 ## Security Notes
 
 - HTTP SSL is disabled for compatibility with most client applications