Update README.md

Author: bmschmidt

README.md

@@ -45,7 +45,7 @@ Then, you can use the following script to interact with GPU4All:
 ```
 from nomic.gpt4all import GPT4All
 m = GPT4All()
-m.connect()
+m.open()
 m.prompt('write me a story about a lonely computer')
 ```