docs(docker): Revert to mounting /etc/resolv.conf as configs: won't work

* Fix wording to make mounting resolv.conf more imperative
* Linting and other changes

docs/public/deploying/docker-compose.with-caddy-labels.yml

@@ -24,6 +24,7 @@ services:
         command: /sbin/conduwuit
         volumes:
             - db:/var/lib/continuwuity
+            - ./continuwuity-resolv.conf:/etc/resolv.conf # use custom resolvers rather than Docker's
             #- ./continuwuity.toml:/etc/continuwuity.toml
         environment:
             CONTINUWUITY_SERVER_NAME: example.com # EDIT THIS
@@ -40,18 +41,8 @@ services:
         labels:
             caddy: matrix.example.com
             caddy.reverse_proxy: "{{upstreams 8008}}"
-        configs: # using custom resolver instead of Docker's
-            - source: continuwuity-resolv.conf
-              target: /etc/resolv.conf
 volumes:
     db:
 
 networks:
     caddy:
-
-configs:
-    continuwuity-resolv.conf:
-        content: |
-            nameserver 1.0.0.1
-            nameserver 1.1.1.1
-