Fix a few typos in the readme of zwave mock server

zwave_mock_server/README.md

@@ -10,9 +10,9 @@ For convenience, this add-on also hosts the Z-Wave JS Server directly, making it
 Within Home Assistant, add a new Integration., click Z-Wave.
 Do not check the 'use default supervisor add-on' checkbox, which allows you to manually enter the URL.
 
-Use this url: `http://77f1785d_zwave_mock_server:3000`
+Use this url: `http://77f1785d-zwave-mock-server:3000`
 
-NOTE: If you want to connect from your dveelopment machine to the mock server running on another machine/instance, you need to open the port in the add-on settings for the mock server addon and then you can connect to port 3000 of the host running the mock addon.
+NOTE: If you want to connect from your development machine to the mock server running on another machine/instance, you need to open the port in the add-on settings for the mock server addon and then you can connect to port 3000 of the host running the mock addon.
 
 ### How to import mock/dump files ?