Fix typos in docs and docstrings (GH-13745)

diff --git a/Lib/ssl.py b/Lib/ssl.py
index f5fa6ae..4afa46e 100644
--- a/Lib/ssl.py
+++ b/Lib/ssl.py
@@ -862,7 +862,7 @@
     @property
     def server_hostname(self):
         """The currently set server hostname (for SNI), or ``None`` if no
-        server hostame is set."""
+        server hostname is set."""
         return self._sslobj.server_hostname
 
     def read(self, len=1024, buffer=None):