Ensure readme is encoded in UTF-8

src/dotnet-retest/dotnet-retest.csproj

@@ -40,10 +40,10 @@
   </ItemGroup>
 
   <Target Name="RenderHelp" AfterTargets="Build" Condition="$(DesignTimeBuild) != 'true'">
-    <WriteLinesToFile Lines="```shell" Overwrite="true" File="help.md" />
-    <Exec Command="dotnet run --no-build -- --help &gt;&gt; help.md"
+    <WriteLinesToFile Lines="```shell" Overwrite="true" Encoding="UTF-8" File="help.md" />
+    <Exec Command="dotnet run --no-build -- --help &gt;&gt; help.md" StdOutEncoding="UTF-8"
           EnvironmentVariables="NO_COLOR=true" />
-    <WriteLinesToFile Lines="```" Overwrite="false" File="help.md" />
+    <WriteLinesToFile Lines="```" Overwrite="false" Encoding="UTF-8" File="help.md" />
   </Target>
 
 </Project>

src/dotnet-retest/help.md

@@ -1,4 +1,4 @@
-```shell
+```shell
 USAGE:
     dotnet retest [OPTIONS] [-- [dotnet test options]]
 

src/dotnet-retest/readme.md

@@ -1,3 +1,3 @@
-<!-- include ../../readme.md#content -->
+<!-- include ../../readme.md#content -->
 <!-- include https://github.com/devlooped/sponsors/raw/main/footer.md -->
 <!-- exclude -->