update README

README.md

@@ -1,3 +1,25 @@
+Do you use `git difftool` to review changes before making a commit? The problem with that is that you get to see the diff of one file at a time. You can't easily stop it after few files and you can't go back to a previous file. `vimtabdiff.py` loads all the files with diffs, one in each vim tab page. You can move around any file and edit the diffs easily.
+
+
+# Install
+
+    mkdir -p ~/bin
+
+    # for python version >= 3.10
+    curl -o ~/bin/vimtabdiff.py "https://raw.githubusercontent.com/balki/vimtabdiff/master/vimtabdiff.py"
+
+    # for python version < 3.10
+    curl -o ~/bin/vimtabdiff.py "https://raw.githubusercontent.com/balki/vimtabdiff/py38/vimtabdiff.py"
+
+    chmod +x ~/bin/vimtabdiff.py
+
+You may need to add `~/bin` to your PATH variable if not already done. See [here](needed://wiki.archlinux.org/title/Environment_variables#Per_user) for help
+👍 this [issue](https://github.com/balki/vimtabdiff/issues/1) for `pip install` support 
+
+
+# Screenshot
+![image](https://user-images.githubusercontent.com/189196/206880555-c71b472c-144c-4c82-a4ab-f8a4fd36f7a5.png)
+
 # Usage
 ```help
     usage: vimtabdiff.py [-h] [--vim VIM] pathA pathB
@@ -13,7 +35,20 @@
       --vim VIM   vim command to run
 ```
 
-# Git difftool
+## Relevant vim tips
+
+`gt`                 → Go to next tab
+`gT`                 → Go to previous tab
+`:tabr`              → Go to first tab
+`:drop filenam<Tab>` → Go to the tab with filename
+`g<Tab>`             → Go to last used tab (Works in vim version > 8.2.1401)
+`set mouse`          → Now clicking on a tab works
+`]c`                 → Go to next diff hunk
+`[c`                 → Go to previous diff hunk
+`do`, `dp`             → Diff obtain, Diff put
+`zo`, `zc`, `zR`         → Fold open, Fold close, open all folds
+
+# See Git diffs
 
 
 ## Setup
@@ -51,10 +86,10 @@ Git config file (`~/.gitconfig`) should look like this
 
 # Known issues
 
-  1. If your path to custom vim has space, it does not work. i.e. Following does **not** work
+  1. If your path to vim has a space, it does not work, i.e. Following does **not** work
 
       ```bash
-      git config --global difftool.vimtabdiff.cmd 'vimtabdiff.py --vim "/home/foo/my files/bin/vim" $LOCAL $REMOTE'
+      git config difftool.vimtabdiff.cmd 'vimtabdiff.py --vim "/home/foo/my program files/bin/vim" $LOCAL $REMOTE'
       ```
   2. Not tested in non-linux OS. Pull requests welcome if found any issues but hopefully should work fine.
 

vimtabdiff.py

@@ -1,5 +1,9 @@
 #!/usr/bin/python3
 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
 import os
 import argparse
 import itertools