feat: API - Declaring site output folder as a variable

_buildApi/BuildApiReference.proj

@@ -54,16 +54,17 @@
       <DocfxJsonGeneratorPath>$(ToolsFolder)\GenerateDocFxJsonTool\DocFxJsonModifier.exe</DocfxJsonGeneratorPath>
       <DocfxFile>$(MsBuildProjectDirectory)\docfx.json</DocfxFile>
       <FilterApi Condition=" '$(HasApiFilter)' == 'true' ">true</FilterApi>
+      <SiteOutputFolder Condition=" '$(SiteOutputFolderName)' == '' ">_site</SiteOutputFolder>
 
       <!--Build Api solution-->
       <BuildApiSolutionName>$(MsBuildProjectDirectory)\BuildAPI.sln</BuildApiSolutionName>
 
       <!--Outpur properties-->
-      <OutputFolder>$(BuildApiRootFolder)\_site</OutputFolder>
+      <OutputFolder>$(BuildApiRootFolder)\$(SiteOutputFolder)</OutputFolder>
       <SitemapFile>$(OutputFolder)\sitemap.xml</SitemapFile>
       <ApiOutputFolder>$(OutputFolder)\api</ApiOutputFolder>
       <ApiStylesOutputFolder>$(OutputFolder)\styles</ApiStylesOutputFolder>
-      <DocsRepoOutputFolder>$(DocsFolder)\_site</DocsRepoOutputFolder>
+      <DocsRepoOutputFolder>$(DocsFolder)\$(SiteOutputFolder)</DocsRepoOutputFolder>
 
       <!--Build Configurations-->
       <BuildConfiguration>Release</BuildConfiguration>