Add local hacking instructions for Tesseract python module (#199)

Added instructions for local installation of Tesseract Python module.
This can be somewhat non-intuitive without the magic invocation!

Author: noajshu

README.md

@@ -378,6 +378,15 @@ cite the following:
 }
 ```
 
+## Hacking on the Python module locally
+To install your own build of Tesseract python module locally so that you can easily modify and hack on it, use something like the following:
+```bash
+bazel build --define TARGET_VERSION="py3.12.9" --define VERSION="v0.0.0dev"  :tesseract_decoder_wheel
+pip uninstall --y tesseract_decoder
+pip install bazel-bin/tesseract_decoder-0.0.0.dev0-py3.12.9-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
+python testscript.py
+```
+
 ## Contact
 
 For any questions or concerns not addressed here, please email <tesseract-decoder-dev@google.com>.