Update env variable

Author: humitos

.readthedocs.yml

@@ -18,7 +18,7 @@ build:
       html:
         # Command copied from
         # https://github.com/python/python-docs-es/blob/3.14/.github/workflows/main.yml#L94
-        - sphinx-build -j auto -W --keep-going -b html -d cpython/Doc/_build/doctree -D language=es . $READTHEDOCS_OUTPUTDIR/html
+        - sphinx-build -j auto -W --keep-going -b html -d cpython/Doc/_build/doctree -D language=es . $READTHEDOCS_OUTPUT/html
 
 
 # Optionally set the version of Python and requirements required to build your docs