Revert "Move ribbon to bottom right corner"

This reverts commit d4a34b2.

Author: aneta-petrova

Diff for: guides/common/header.adoc

@@ -13,7 +13,7 @@ ifeval::["{DocState}" == "nightly"]
 ++++
 <!-- "Fork me on GitHub" CSS ribbon v0.2.3 | MIT License -->
 <!-- https://github.com/simonwhitaker/github-fork-ribbon-css -->
-<a class="github-fork-ribbon right-bottom fixed" href="https://docs.theforeman.org" data-ribbon="Pre-release version" title="Pre-release version">
+<a class="github-fork-ribbon right-top fixed" href="https://docs.theforeman.org" data-ribbon="Pre-release version" title="Pre-release version">
 Pre-release version
 </a>
 ++++
@@ -28,7 +28,7 @@ ifeval::["{DocState}" == "unsupported"]
 ++++
 <!-- "Fork me on GitHub" CSS ribbon v0.2.3 | MIT License -->
 <!-- https://github.com/simonwhitaker/github-fork-ribbon-css -->
-<a class="github-fork-ribbon right-bottom fixed" href="https://docs.theforeman.org" data-ribbon="Unsupported version" title="Unsupported version">
+<a class="github-fork-ribbon right-top fixed" href="https://docs.theforeman.org" data-ribbon="Unsupported version" title="Unsupported version">
 Unsupported version
 </a>
 ++++