Fix typos in docstrings

prometheus_client/exposition.py

@@ -667,7 +667,7 @@ def push_to_gateway(
               url, method, timeout, headers, and content
               May be used to implement additional functionality not
               supported by the built-in default handler (such as SSL
-              client certicates, and HTTP authentication mechanisms).
+              client certificates, and HTTP authentication mechanisms).
               'url' is the URL for the request, the 'gateway' argument
               described earlier will form the basis of this URL.
               'method' is the HTTP method which should be used when

prometheus_client/values.py

@@ -69,7 +69,7 @@ def cleanup():
     _multi_process_cleanups.append(cleanup)
 
     class MmapedValue:
-        """A float protected by a mutex backed by a per-process mmaped file."""
+        """A float protected by a mutex backed by a per-process mapped file."""
 
         _multiprocess = True