docs: Update README with new features and keyboard shortcuts

readme.md

@@ -13,18 +13,32 @@ Basic usage: `gtm [filename]`
 --diff-additions  Highlight newly added lines in green
 --diff-deletions  Show deleted lines in red
 --no-mouse        Disable mouse support
+--mouse           Enable mouse support (default)
+--no-wrap         Disable line wrapping
+--line-numbers    Show line numbers
 -v, --version     Show version number
 ```
 
 
 ## Interface
 
-- use the up/down arrow keys (or h/l) to switch commits in the left pane, or scroll through the file in the right pane
+- Use the up/down arrow keys (or j/k) to switch commits in the left pane, or scroll through the file in the right pane
-- use the left/right arrow keys (or j/k) to switch panes
+- Use the left/right arrow keys (or h/l) to switch panes
-- use the mouse to select commits, switch panes, and resize the panes by dragging the divider
+- Use the mouse to select commits, switch panes, and resize the panes by dragging the divider
-- press 's' to show/hide the sidebar
+- Press 's' to show/hide the sidebar
-- press 'm' to turn mouse support on/off
+- Press 'm' to turn mouse support on/off
+- Press 'w' to toggle line wrapping
+- Press 'L' to toggle line numbers
+- Press '/' to search within the file
+- Press 'n' to jump to the next search match
+- Press 'N' to jump to the previous search match
+- Press 'c' to jump to the next change
+- Press 'C' to jump to the previous change
+- Press '?' to show help with all keyboard shortcuts
 
-- You can select text with the mouse, but you have to go a bit slowly. (Fixing that is on the TODO list.)
+### Text Selection
+- Select text with the mouse to copy it to the clipboard
+- Selection is automatically cleared when scrolling or changing commits
+- Click on a commit hash in the status bar to copy it to the clipboard
 
 ![screenshot](screenshot.png)