[doc] Fix documentation in APISite.compare

Change-Id: Id23b972dd8a1d657f5eed14e8a981fb13d5911a2
---
M pywikibot/site/_apisite.py
1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/pywikibot/site/_apisite.py b/pywikibot/site/_apisite.py
index be67d92..f8097cc 100644
--- a/pywikibot/site/_apisite.py
+++ b/pywikibot/site/_apisite.py
@@ -2862,8 +2862,7 @@
 
         .. hint:: Use :func:`diff.html_comparator` function to parse
            result.
-
-        .. seealso: :api:`Compare`
+        .. seealso:: :api:`Compare`
 
         :param old: starting revision ID, title, Page, or Revision
         :param diff: ending revision ID, title, Page, or Revision

