DOCS: update CAPS across docs

Signed-off-by: jokob-sk <jokob.sk@gmail.com>

docs/DOCKER_PORTAINER.md

@@ -46,6 +46,9 @@ services:
       - NET_RAW
       - NET_ADMIN
       - NET_BIND_SERVICE
+      - CHOWN
+      - SETUID
+      - SETGID               
     volumes:
       - ${APP_FOLDER}/netalertx/config:/data/config
       - ${APP_FOLDER}/netalertx/db:/data/db

docs/FILE_PERMISSIONS.md

@@ -60,6 +60,8 @@ To run as the root user, it usually looks like this (verify the IDs on your serv
 ...
 ```
 
+If you use a custom `PUID` (e.g. `0`) and `GUID` (e.g. `100`) make sure you also update the `tmpfs` ownership, e.g. `/tmp:uid=0,gid=100...`
+
 ### Solution
 
 1. **Run the container once as root** (`--user "0"`) to allow it to correct permissions automatically:

docs/PERFORMANCE.md

@@ -92,6 +92,9 @@ services:
       - NET_RAW
       - NET_ADMIN
       - NET_BIND_SERVICE
+      - CHOWN
+      - SETUID
+      - SETGID
 
     volumes:
       - ${APP_FOLDER}/netalertx/config:/data/config

docs/SYNOLOGY_GUIDE.md

@@ -47,6 +47,9 @@ services:
       - NET_RAW
       - NET_ADMIN
       - NET_BIND_SERVICE
+      - CHOWN
+      - SETUID
+      - SETGID
     volumes:
       - /app_storage/netalertx:/data
       # to sync with system time