Doc: Update VCS screenshots

...and make related changes in the doc file.

Rename qtcreator-vcs-log.png as qtcreator-vcs-show.png,
because it is a screenshot of the Git Show view.

Change-Id: Ibf5dbb4c72e0d8b743f67307288452a6224de74c
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

doc/src/howto/creator-vcs.qdoc

@@ -211,7 +211,7 @@
 
     With Git and Subversion, the diff is displayed side-by-side in a \l{Comparing Files}
     {diff editor} by default. To use the inline diff view instead, select the
-    \uicontrol {Switch to Text Diff Editor} option from the toolbar. In the inline
+    \uicontrol {Switch to Text Diff Editor} (1) option from the toolbar. In the inline
     diff view, you can use context menu commands to apply, revert, stage, and
     unstage hunks, as well as send them to a code pasting service.
 
@@ -241,13 +241,15 @@
     Display the versioning history of a file by selecting \uicontrol{Log}
     or \uicontrol{Filelog}. Typically, the log output contains the date, the commit
     message, and a change or revision identifier. Click on the identifier to
-    display a description of the change including the diff.
+    display a description of the change including the diff in the
+    \uicontrol {Git Show} view.
+
+    \image qtcreator-vcs-show.png
+
     Right-clicking on an identifier brings up a context menu that lets you
     show annotation views of previous versions (see \l{Annotating Files}).
     With Git you can also choose to cherry-pick or revert a change.
 
-    \image qtcreator-vcs-log.png
-
     \section2 Annotating Files
 
     Annotation views are obtained by selecting \uicontrol{Annotate} or \uicontrol{Blame}.