Bump version to 0.0.12 (#139)

- Add OpenSourceApp, uses open source embedding model
and LLM. Both are free to use.
- Add support for api_key in OpenAI api call
- Update readme to show how to reuse vector db

setup.py

@@ -5,7 +5,7 @@ with open("README.md", "r", encoding="utf-8") as fh:
 
 setuptools.setup(
     name="embedchain",
-    version="0.0.11",
+    version="0.0.12",
     author="Taranjeet Singh",
     author_email="reachtotj@gmail.com",
     description="embedchain is a framework to easily create LLM powered bots over any dataset",