skip/limit won't work properly when _design docs exists (#705)

diff --git a/src/api/server/common.rst b/src/api/server/common.rst
index 222b896..84017e9 100644
--- a/src/api/server/common.rst
+++ b/src/api/server/common.rst
@@ -219,6 +219,12 @@
            "locations"
         ]
 
+.. note::
+    The "`skip`" and "`limit`" parameters of GET `_all_dbs` will not work
+    properly if design documents exist in shards dbs. For example, if we have
+    2 _design/* docs and 2 dbs (db1, db2), if we set `skip=2`, it will return
+    [db1, db2], which looks like skip doesn't work.
+
 .. _api/server/dbs_info:
 
 ==============
@@ -295,6 +301,12 @@
           }
         ]
 
+.. note::
+    The "`skip`" and "`limit`" parameters of GET `_dbs_info` will not work
+    properly if design documents exist in shards dbs. For example, if we have
+    2 _design/* docs and 2 dbs (db1, db2), if we set `skip=2`, it will return
+    db's info for db1 and db2, which looks like skip doesn't work.
+
 .. versionadded:: 2.2
 
 .. http:post:: /_dbs_info