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+<p align="center">
+  <img src="https://upload.wikimedia.org/wikipedia/en/1/15/BiffTannenBackToTheFuture1985.jpg">
+  <h1 align="center">BIFF</h1>
+</p>
+
+Diff the fancy way in tmux!
+
+1. Select something using copy-mode.
+2. Press `v`
+3. Select something else
+4. Press `v`
+5. See diff
+
+
+Picture By Universal Studios - [1], Fair use, https://en.wikipedia.org/w/index.php?curid=39460934