diff --git a/.github/workflows/cd_docs.yml b/.github/workflows/cd_docs.yml
index 64aab0f..4e024c0 100644
--- a/.github/workflows/cd_docs.yml
+++ b/.github/workflows/cd_docs.yml
@@ -45,6 +45,8 @@ jobs:
         echo "fetching..."
         git fetch
         git reset --hard
+        echo "checking out main..."
+        git checkout main
         echo "checking out gh-pages..."
         git checkout gh-pages
         rm -r docs/
diff --git a/setup.py b/setup.py
index 7b0f0e1..6e9e5f3 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,12 @@
     author_email='g.dl@hotmail.it',
     url='https://github.com/GDeLaurentis/syngular',
     download_url=f'https://github.com/GDeLaurentis/syngular/archive/{version}.tar.gz',
-    keywords=['syngular', 'singular', 'algebraic geometry'],
+    project_urls={
+        'Documentation': 'https://gdelaurentis.github.io/syngular/',
+        'Issues': 'https://github.com/GDeLaurentis/syngular/issues',
+    },
+    keywords=['syngular', 'singular', 'algebraic geometry', 'ring', 'ideal',
+              'polynomials', 'polynomial equations'],
     packages=find_packages(),
     install_requires=[
         'numpy',
diff --git a/sphinx/source/conf.py b/sphinx/source/conf.py
index 0192710..4f07732 100644
--- a/sphinx/source/conf.py
+++ b/sphinx/source/conf.py
@@ -17,7 +17,7 @@
 
 sys.path.insert(0, os.path.abspath('../../'))
 
-from version import __version__ as version
+from version import __version__ as version  # noqa
 
 # -- Project information -----------------------------------------------------