more cleanup (#27)

apps/other/code.md

@@ -11,7 +11,6 @@ VSCode in the browser!
 ## docker-compose.yml
 ```yml
 ---
-version: "2.1"
 services:
   code-server:
     image: linuxserver/code-server

apps/other/language-tool.md

@@ -22,7 +22,6 @@ LanguageTool can make use of large n-gram data sets to detect errors with words
 ## docker-compose.yml
 ```yml
 ---
-version: "3"
 services:
   languagetool:
     image: erikvl87/languagetool

apps/other/vpn.md

@@ -10,7 +10,6 @@ An account with a compatible VPN provider is required.
 ## docker-compose.yml
 ```yml
 ---
-version: "3"
 services:
   gluetun:
     image: qmcgaw/gluetun
@@ -39,7 +38,6 @@ services:
 and then - in the corresponding service `docker-compose.yml`, e.g.:
 ```yml
 ---
-version: "3"
 services:
   jackett:
     image: ghcr.io/linuxserver/jackett