Add news entries about preview/apply fix and findings tab

Change-Id: I1d831279e581757be736f5e58be42a9c8c0c6f18
diff --git a/_drafts/2020-03-31-gerrit-news-feb-mar-2020.md b/_drafts/2020-03-31-gerrit-news-feb-mar-2020.md
index c291a82..4897efe 100644
--- a/_drafts/2020-03-31-gerrit-news-feb-mar-2020.md
+++ b/_drafts/2020-03-31-gerrit-news-feb-mar-2020.md
@@ -62,7 +62,26 @@
 
 ## New 'Preview/Apply Fix' Feature
 
-TODO.
+When posting robot comments, suggestions for a fix can be directly attached to it. This feature has
+been present in Gerrit for some years. However, those fixes weren't shown on Gerrit's UI. This has
+changed. Robot comments now have a `Show fix` button when at least one fix is available for them.
+
+![Robot Comment With Show Fix](/images/news-feb-march-2020-show-fix.png)
+
+The button opens a dialog indicating how the fix would modify the code.
+
+![Preview Fix Dialog](/images/news-feb-march-2020-preview-fix.png)
+
+If several fixes are present, users can switch between them and use `Apply fix` on the one they
+prefer. The code modifications will end up in a change edit which can be further adjusted before
+being published.
+
+## New 'Findings' Tab
+
+The `Findings` tab next to the `Files` section gives an overview of and quick access to all robot
+comments on a patch set. 
+
+![Findings Tab](/images/news-feb-march-2020-findings-tab.png) 
 
 ## Frontend framework changes
 
diff --git a/images/news-feb-march-2020-findings-tab.png b/images/news-feb-march-2020-findings-tab.png
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diff --git a/images/news-feb-march-2020-preview-fix.png b/images/news-feb-march-2020-preview-fix.png
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diff --git a/images/news-feb-march-2020-show-fix.png b/images/news-feb-march-2020-show-fix.png
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