Documentation - Status/Check for modifications - need Stash

The documentation in chapter 2.6.2. Status shows a window on the Figure 2.13 Check for Modifications

That window figures "Stash" button that may open menu with not the most obvious choices.

However that menu is neither shown nor described in the topic. USer might get lost, especially if his TGit is localized and TGit's GUI does not match the documentation language.

Request: explicitly add a paragaraph about Stash button with some brief text and a reference to chapter 2.25. Stash Changes and to Figure 2.49 (Un)stash options