Add precise commands for Foreman manual branching

procedures/foreman/branch.md.erb

@@ -44,6 +44,11 @@
 - Prepare the manual for the new version:
   - [ ] Change `$next` parameter on [web class](https://github.com/theforeman/foreman-infra/blob/master/puppet/modules/profiles/manifests/web.pp) to point to the new version number.
   - [ ] Copy [website manual content](https://github.com/theforeman/theforeman.org/tree/gh-pages/manuals) from nightly to <%= release %> and update version numbers mentioned in it.
+    - `cp -r manuals/nightly manuals/<%= release %>`
+    - `cp -r _includes/manuals/nightly _includes/manuals/<%= release %>`
+    - `sed -i 's/nightly/<%= release %>/i' manuals/<%= release %>/*.md`
+    - `sed -i '/previous_version/ s/: .\+/: "<%= release %>"/' manuals/nightly/index.md`
+    - `sed -i '/- nightly/a \ \ - "<%= release %>"' _config.yml`
   - [ ] Update installer options section of nightly manual using the [get-params script](https://github.com/theforeman/theforeman.org/blob/gh-pages/scripts/installer/get-params)
   - [ ] Clean up deprecation and upgrade warnings from nightly manual for in both [foreman.adoc](https://github.com/theforeman/foreman-documentation/blob/master/guides/doc-Release_Notes/topics/foreman.adoc) and [katello.adoc](https://github.com/theforeman/foreman-documentation/blob/master/guides/doc-Release_Notes/topics/katello.adoc).
 - [ ] Add new languages that are at a [reasonable completion on Transifex](https://www.transifex.com/foreman/foreman/foreman/) to __develop__