The docs BRANCH is not in sync with master/docs (owncloud.dev relevant)

**ISSUE:**

When looking in the **docs branch**, the `services/` folder contains not only actual but also former content compared to **master/docs**. Content gets added/updated but never removed.

How I identified it:

A recent change in the master branch to collect general info content for services in to an own sub section correctly showed up in the master branch but not in the docs branch. There, the original AND moved files show up - which now also show up in owncloud.dev as _additional_ content.

This means that:

* content shown in the docs branch is not a 1:1 copy of content in the master branch.
* owncloud.dev does not reflect 1:1 what we have as source in master/docs.
Content shown is in an undefined state.

**Impact:**
owncloud.dev is currently contentwise in an undefined state and therefore unmaintainable.

**Fix:**

To fix this issue, we urgently **must** ensure that the **docs branch** is a 1:1 copy of **master/docs**.

@micbar @dragotin @butonic @dragonchaser @kobergj