[Python] Fix README (#4867)

## Changes
Reference correct package in databricks-bundles Python package README

## Why
README was pointing to outdated template

Author: kanterov

python/README.md

@@ -22,7 +22,7 @@ To use `databricks-bundles`, you must first:
 3. To create a new project, initialize a bundle using the `experimental-jobs-as-code` template:
 
   ```bash
-  databricks bundle init experimental-jobs-as-code
+  databricks bundle init pydabs
   ```
 
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