changelog && documentation

CHANGELOG

@@ -6,6 +6,7 @@ v 7.9.0 (unreleased)
   - Improve error messages for file edit failures
   - Improve UI for commits, issues and merge request lists
   - Fix commit comments on first line of diff not rendering in Merge Request Discussion view.
+  - Save web edit in new branch
 
 v 7.8.0
   - Fix access control and protection against XSS for note attachments and other uploads.

doc/workflow/web_editor.md

@@ -10,7 +10,7 @@ to create the first file and open it in the web editor.
 
 ![web editor 1](web_editor/empty_project.png)
 
-Fill in a file name, some content, a commit message and press the commit button.
+Fill in a file name, some content, a commit message, branch name and press the commit button.
 The file will be saved to the repository.
 
 ![web editor 2](web_editor/new_file.png)
@@ -21,6 +21,6 @@ viewing the file.
 ![web editor 3](web_editor/show_file.png)
 
 Editing a file is almost the same as creating a new file,
-with as addition the ability to preview your changes in a separate tab.
+with as addition the ability to preview your changes in a separate tab. Also you can save your change to another branch by filling out field `branch`
 
 ![web editor 3](web_editor/edit_file.png)