Clean up README documentation

Remove redundant 'original behavior' text from alphabetical sorting option.

🤖 Generated with [opencode](https://opencode.ai)

Co-Authored-By: opencode <[email protected]>

Author: josephschmitt

README.md

@@ -59,7 +59,7 @@ set -g @fzf-url-fzf-options '-w 50% -h 50% --multi -0 --no-preview --no-border'
 You can control how URLs are sorted by setting `@fzf-url-sort-by`:
 
 ```tmux
-# Sort URLs alphabetically (default) - original behavior
+# Sort URLs alphabetically (default)
 set -g @fzf-url-sort-by 'alphabetical'
 
 # Sort URLs by recency - most recent URLs closest to search bar