Doc: Describe actions in Uncommitted Changes Found dialog

The dialog opens when users execute git pull with uncommitted
changes. Only the Stash option was documented.

Task-number: QTCREATORBUG-25795
Task-number: QTCREATORBUG-32575
Change-Id: I97bb9174a72ad432683e87cc09d46aacd91bac89

Reviewed-by: André Hartmann <aha_1980@gmx.de>

dist/changelog/changes-17.0.0.md

@@ -195,6 +195,7 @@ Version Control Systems
   ([Documentation](https://doc-snapshots.qt.io/qtcreator-17.0/creator-how-to-git-log.html))
 * Added a `Diff & Cancel` option to the `Uncommitted Changes Found` dialog
   ([QTCREATORBUG-25795](https://bugreports.qt.io/browse/QTCREATORBUG-25795))
+  ([Documentation](https://doc-snapshots.qt.io/qtcreator-17.0/creator-how-to-git-pull.html))
 * Added a `.gitignore` file when creating a repository in an existing directory
   ([QTCREATORBUG-29776](https://bugreports.qt.io/browse/QTCREATORBUG-29776))
 * Fixed that numbers in file names were interpreted as commit IDs

doc/qtcreator/src/vcs/creator-vcs-git.qdoc

@@ -1223,7 +1223,40 @@
     To pull changes from a remote repository, go to \uicontrol Tools >
     \uicontrol Git > \uicontrol {Remote Repository} and select \uicontrol Pull.
 
-    If you have modified files, you are prompted to stash the changes.
+    If you have modified files, you are asked how to handle them.
+
+    \section1 Manage uncommitted changes
+
+    \image {qtcreator-git-uncommitted-changes-found.webp} {Uncommitted Changes Found dialog}
+
+    You can apply the following actions to uncommitted changes:
+
+    \table
+        \header
+            \li Menu Item
+            \li Description
+        \row
+            \li \uicontrol {Diff & Cancel}
+            \li View a diff of the changes and cancel \c {git pull}.
+        \row
+            \li \uicontrol {Discard}
+            \li Reset local changes and execute \c {git pull}. The changes will
+                be lost.
+        \row
+            \li \uicontrol {Ignore}
+            \li Execute \c {git pull} with local changes in the working
+                directory.
+        \row
+            \li \uicontrol {Show/Hide Details}
+            \li Show or hide details of the local changes.
+        \row
+            \li \uicontrol {Stash}
+            \li Stash the local changes and execute \c {git pull}.
+        \row
+            \li \uicontrol {Stash & Pop}
+            \li Stash the local changes, execute \c {git pull}, and then pop
+                the changes.
+    \endtable
 
     \section1 Pull with rebase