Add a Linux tips section and move Docker stacks to /srv/docker

content/en/3.serveex/4.monitoring/3.speedtest-tracker.md

@@ -20,12 +20,13 @@ We will use the Docker image maintained by **LinuxServer.io**
 ---
 tree:
   /:
-    - docker:
-      - speedtest-tracker:
-        - compose.yaml
-        - .env
-        - data:
-          - config/
+    - srv:
+      - docker:
+        - speedtest-tracker:
+          - compose.yaml
+          - .env
+          - data:
+            - config/
 ---
 ::
 
@@ -61,7 +62,7 @@ services:
             - DB_CONNECTION=sqlite
             - SPEEDTEST_SCHEDULE=${SCHEDULE}
         volumes:
-            - /docker/speedtest-tracker/data/config:/config
+            - /srv/docker/speedtest-tracker/data/config:/config
 ```
 
 ### Set your environment variables
@@ -110,7 +111,7 @@ Speedtest Tracker does not use multi-factor authentication. Exposing it on the i
 Open the `speedtest.subdomain.conf` file:
 
 ```bash [Terminal]
-sudo nano /docker/swag/config/nginx/proxy-confs/speedtest.subdomain.conf
+sudo nano /srv/docker/swag/config/nginx/proxy-confs/speedtest.subdomain.conf
 ```
 
 Configure it like this: