Fix accelerate check when spaces in path

:accelerate

echo "Checking for accelerate"

dir %VENV_DIR%\Scripts\accelerate.exe >tmp/stdout.txt 2>tmp/stderr.txt

if %ERRORLEVEL% == 0 goto :accelerate_launch

set ACCELERATE="%~dp0%VENV_DIR%\Scripts\accelerate.exe"

if EXIST %ACCELERATE% goto :accelerate_launch

:launch

%PYTHON% launch.py %*

exit /b

:accelerate_launch

echo "Accelerating2"

set ACCELERATE="%~dp0%VENV_DIR%\Scripts\accelerate.exe"

echo "Accelerating"

%ACCELERATE% launch --num_cpu_threads_per_process=6 launch.py

pause

exit /b