docs: Renames ReleaseNotes.html to ReleaseNotes.txt

Author: ironcev

src/Sharpen.VisualStudioExtension/ReleaseNotes.html

@@ -0,0 +1,32 @@
+Changelog
+=========
+All notable changes to the "Sharpen" extension will be documented in this file.
+
+The format of the file is based on "Keep a Changelog" (http://keepachangelog.com/en/1.0.0/).
+
+[0.2.0] - 2017-12-14
+====================
+Added
+- "Use default expression in optional constructor parameters" suggestion.
+- "Use default expression in optional method parameters" suggestion.
+- "Use default expression in return statements" suggestion.
+
+[0.1.1] - 2017-11-21
+====================
+Added
+- Icon, preview image and release notes.
+
+[0.1.0] - 2017-11-21
+====================
+Added
+- Grouping the results by C# Version > Suggestion > <Project>\File.
+- Display of the analysis results in a tree view.
+- Analysis of the whole solution.
+- "Use expression body for get-only properties" suggestion.
+- "Use expression body for get-only indexers" suggestion.
+- "Use expression body for constructors" suggestion.
+- "Use expression body for destructors" suggestion.
+- "Use expression body for get accessors in properties" suggestion.
+- "Use expression body for get accessors in indexers" suggestion.
+- "Use expression body for set accessors in properties" suggestion.
+- "Use expression body for set accessors in indexers" suggestion.

src/Sharpen.VisualStudioExtension/ReleaseNotes.txt

@@ -376,7 +376,7 @@
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
       <IncludeInVSIX>true</IncludeInVSIX>
     </Content>
-    <Content Include="ReleaseNotes.html">
+    <Content Include="ReleaseNotes.txt">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
       <IncludeInVSIX>true</IncludeInVSIX>
     </Content>