Merge pull request #930 from marceloneppel/fix-asyncio-on-readme

#930

#### Description

The following error is thrown if we run the example code from README.
```sh
Traceback (most recent call last):
 File "/home/ubuntu/main.py", line 6, in <module>
 from juju import asyncio
ImportError: cannot import name 'asyncio' from 'juju' (/home/linuxbrew/.linuxbrew/Cellar/[email protected]/3.11.4_1/lib/python3.11/site-packages/juju/__init__.py)
```

It fails because it should be using `jasyncio`, which is the correct module to import. The the other examples from the `examples` folder are using the correct module.

#### QA Steps

Add the code from README to a file named `main.py` and run it with `python3 main.py`. The ubuntu charm should be correctly deployed.

docs/readme.rst

@@ -51,7 +51,7 @@ Pylibjuju requires an already bootstrapped Juju controller to connect to.
   import logging
   import sys
 
-  from juju import asyncio
+  from juju import jasyncio
   from juju.model import Model
 
 
@@ -89,7 +89,7 @@ Pylibjuju requires an already bootstrapped Juju controller to connect to.
 
       # Run the deploy coroutine in an asyncio event loop, using a helper
       # that abstracts loop creation and teardown.
-      asyncio.run(deploy())
+      jasyncio.run(deploy())
 
 
   if __name__ == '__main__':