Remove readthedocs

(grafted from 2f67994e59b0bca29d7b0632a51540774b109140)

--HG--
branch : 6.0

modules/web_user/setup.py

@@ -58,7 +58,9 @@ setup(name=name,
     download_url=download_url,
     project_urls={
         "Bug Tracker": 'https://bugs.tryton.org/',
-        "Documentation": 'https://docs.tryton.org/',
+        "Documentation": (
+            'https://docs.tryton.org/'
+            'modules-web-user'),
         "Forum": 'https://www.tryton.org/forum',
         "Source Code": 'https://hg.tryton.org/modules/web_user',
         },