fixes doc build (#792)

Author: ankitaluthra1

docs/environment.yml

@@ -1,8 +1,9 @@
-name: s3fs
+name: gcsfs
 channels:
   - defaults
 dependencies:
   - python= 3.10
   - docutils<0.17
+  - setuptools<81
   - sphinx
   - sphinx_rtd_theme

docs/source/developer.rst

@@ -36,7 +36,7 @@ When running tests against a real GCS endpoint, you have two options for test bu
   during final cleanup.
 
 End-to-end Testing CI Pipeline
----------------------------
+------------------------------
 
 We have a Cloud Build pipeline for end-to-end tests which includes tests on zonal
 and regional buckets. When a pull request is created for the ``main`` branch,