docs: update README with improved description

Enhance the README by refining the project description to highlight the
focus on optimizing zsh/nvim startup\
speed while maintaining functionality. The previous tagline was replaced
with a more informative statement.\
Additionally, the section on installation instructions was updated to
clarify the absence of detailed\
instructions, encouraging users to patch it together as needed.

These changes aim to provide clearer guidance and a better understanding
of the project's goals and usage.

Author: willdoescode

README.md

@@ -1,6 +1,8 @@
-# Dotfiles - The best dotfiles to ever be dot-filed
+# Dotfiles
 
-### No install instructions just monkey-patch it together
+Optimized dotfiles focused on zsh/nvim startup speed while maintaining functionality.
+
+### No install instructions - patch it together as needed
 
 ![demo](assets/demo.png)
-![c-demo](assets/c-demo.png)
+![c-demo](assets/c-demo.png)