Null change just to re-run integration test

Sorry, I have no other way to re-run the Docker build test.
Changed one space.

notebooks/OpenFold.ipynb

@@ -105,7 +105,7 @@
         "\n",
         "TQDM_BAR_FORMAT = '{l_bar}{bar}| {n_fmt}/{total_fmt} [elapsed: {elapsed} remaining: {remaining}]'\n",
         "\n",
-        "python_version = '.'.join(sys.version.split('.')[:2]) # get string like \"3.9\"\n",
+        "python_version = '.'.join(sys.version.split('.')[:2]) #get string like \"3.9\"\n",
         "\n",
         "try:\n",
         "  with io.capture_output() as captured:\n",