feat: Error exit level added

build-all.bat

@@ -1 +1,2 @@
-PowerShell.exe -NoProfile -ExecutionPolicy Bypass -Command "& './BuildDocs.ps1' -BuildAll"
+PowerShell.exe -NoProfile -ExecutionPolicy Bypass -Command "& './BuildDocs.ps1' -BuildAll"
+if %errorlevel% neq 0 exit /b %errorlevel%