readme: update

- convert embedded links to html
- change local installation instructions

README.md

@@ -46,15 +46,14 @@ Commands:
 - Python 3.8 or higher
 
 ## Installation
-- Install from [PyPI](https://pypi.org/project/pyimg4/):
+- Install from <a href="https://pypi.org/p/pyimg4">PyPI</a>:
     - ```python3 -m pip install pyimg4```
 - Local installation:
-    - `./install.sh`
-    - Requires [Poetry](https://python-poetry.org)
+    - `pip install --force-reinstall .`
 
 ## Notes
 - For compression, LZFSE compression utilizes the <a href="https://pypi.org/p/apple-compress">apple-compress</a> library on *OS, and the <a href="https://pypi.org/p/lzfse">lzfse</a> library on all other OSes (due to libcompression not being available outside of Apple platforms).
   - If for some reason you'd like to force the lzfse library to be used on *OS (not recommended), you can set the environment variable `PYIMG4_FORCE_LZFSE`.
 
 ## Support
-For any questions/issues you have, [open an issue](https://github.com/m1stadev/PyIMG4/issues).
+For any questions/issues you have, <a href="https://github.com/m1stadev/PyIMG4/issues">open an issue<a/>.