Renaming services and add some tags.

content/de/services/jabber.md → content/de/services/chat.md

 ---
-title: "Jabber"
+title: "Chat"
 date: 2019-05-08T20:55:44+02:00
 weight: 20
+tags:
+- Jabber
+- XMPP
 ---
 

content/de/services/nextcloud.md → content/de/services/cloud.md

 ---
-title: "Nextcloud"
+title: "Cloud"
 date: 2019-05-08T20:56:08+02:00
 weight: 25
+tags:
+- Dropbox
+- Nextcloud
+- Owncloud
+- Share
 ---
 

content/de/services/code.md

@@ -2,5 +2,8 @@
 title: "Code"
 date: 2019-05-08T20:56:35+02:00
 weight: 35
+tags:
+- Git
+- GitLab
 ---