Add config/comment with example of using github release artifact instead of

Author: jwiltse

portable-python.yml

@@ -34,6 +34,12 @@ cpython-additional-packages:
 # zlib-url: https://my-zlib-mirror/zlib-$version.tar.gz
 # zlib-http-headers:
 #  - Authorization: Bearer ${GITHUB_TOKEN}
+#
+# The .tar.gz in projects public releases has additional files not present the tarball of the git tag
+# uuid-url: https://my-github-enterprise/api/v3/repos/opensource/libuuid/releases/assets/48151
+# uuid-http-headers:
+#  - Authorization: Bearer ${GITHUB_TOKEN}
+#    Accept: application/octet-stream
 
 # Uncomment to override the ./configure arguments for a dependency
 # Note: this will replace the default arguments, not extend them