Prep for Release v1.7.0 (#1910)

* prepping for v1.7 release

* Updated release notes for v1.7

* updated rel notes

* regen docs

* trying to fix view source

* reactive ui update

docs/articles/treeview.html

@@ -221,6 +221,13 @@ tree.AddObject(army1);
           
           <div class="hidden-sm col-md-2" role="complementary">
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+              <div class="contribution">
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+                    <a href="https://github.com/gui-cs/Terminal.Gui/blob/develop/docfx/articles/treeview.md/#L1" class="contribution-link">Improve this Doc</a>
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+              </div>
               <nav class="bs-docs-sidebar hidden-print hidden-xs hidden-sm affix" id="affix">
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