Fixed some README.md typos

README.md

@@ -59,10 +59,10 @@ There are a few reasonable ways of setting it up.
         auth_request    /cloud/auth/;
 
         client_body_temp_path /var/nginx/webdav_client_temp;
-        dav_ext_methods PUT DELETE MKCOL COPY MOVE PROPFIND OPTIONS LOCK UNLOCK;
+        webdav_methods PUT DELETE MKCOL COPY MOVE PROPFIND OPTIONS LOCK UNLOCK;
         create_full_put_path  on;
-        dav_access            all:rw;
-        dav_ext_lock zone=foo;
+        webdav_access            all:rw;
+        webdav_lock zone=foo;
 
         root   /var/nginx/webdav;
         index  index.html index.htm;