Add badges to readme for pypi release and documentation (#1109)

## Describe your changes
For better visibility of these resources. 

Shows up like below but on the same line
[![PyPI
release](https://img.shields.io/pypi/v/olive-ai)](https://pypi.org/project/olive-ai/)

[![Documentation](https://img.shields.io/website/https/microsoft.github.io/Olive?down_color=red&down_message=offline&up_message=online)](https://microsoft.github.io/Olive/)



## Checklist before requesting a review
- [ ] Add unit tests for this change.
- [ ] Make sure all tests can pass.
- [ ] Update documents if necessary.
- [ ] Lint and apply fixes to your code by running `lintrunner -a`
- [ ] Is this a user-facing change? If yes, give a description of this
change to be included in the release notes.
- [ ] Is this PR including examples changes? If yes, please remember to
update [example
documentation](https://github.com/microsoft/Olive/blob/main/docs/source/examples.md)
in a follow-up PR.

## (Optional) Issue link

README.md

@@ -1,4 +1,6 @@
 # Olive
+[![PyPI release](https://img.shields.io/pypi/v/olive-ai)](https://pypi.org/project/olive-ai/)
+[![Documentation](https://img.shields.io/website/https/microsoft.github.io/Olive?down_color=red&down_message=offline&up_message=online)](https://microsoft.github.io/Olive/)
 
 Olive is an easy-to-use hardware-aware model optimization tool that composes industry-leading techniques
 across model compression, optimization, and compilation. Given a model and targeted hardware, Olive composes the best