[doc] Skip empty __init__

Change-Id: If8cd57dda4b24ade071947f3bca1d0f7359450ab
---
M docs/conf.py
M pywikibot/site/_apisite.py
2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/docs/conf.py b/docs/conf.py
index e4be68c..bbc1bb4 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -451,7 +451,7 @@
     """Skip certain members from documentation."""
     inclusions = ('__init__', )
     exclusions = ()
-    if name in inclusions:
+    if name in inclusions and len(str.splitlines(obj.__doc__ or '')) >= 3:
         return False
     if name.startswith('__') and name.endswith('__'):
         return True
diff --git a/pywikibot/site/_apisite.py b/pywikibot/site/_apisite.py
index f9233c9..951530e 100644
--- a/pywikibot/site/_apisite.py
+++ b/pywikibot/site/_apisite.py
@@ -102,10 +102,9 @@
     WikibaseClientMixin,
 ):
 
-    """
-    API interface to MediaWiki site.
+    """API interface to MediaWiki site.
 
-    Do not instantiate directly; use pywikibot.Site function.
+    Do not instantiate directly; use L{pywikibot.Site} function.
     """
 
     @remove_last_args(['sysop'])

