Add Show The diffstat Summary Of A Commit as a git til

README.md

@@ -96,6 +96,7 @@ _338 TILs and counting..._
 - [Reference A Commit Via Commit Message Pattern Matching](git/reference-a-commit-via-commit-message-pattern-matching.md)
 - [Renaming A Branch](git/renaming-a-branch.md)
 - [Resetting A Reset](git/resetting-a-reset.md)
+- [Show The diffstat Summary Of A Commit](git/show-the-diffstat-summary-of-a-commit.md)
 - [Single Key Presses in Interactive Mode](git/single-key-presses-in-interactive-mode.md)
 - [Staging Changes Within Vim](git/staging-changes-within-vim.md) 
 - [Staging Stashes Interactively](git/staging-stashes-interactively.md)

git/show-the-diffstat-summary-of-a-commit.md

@@ -0,0 +1,25 @@
+# Show The diffstat Summary Of A Commit
+
+Use the `--stat` flag when running `git show` on a commit to see the
+`diffstat` summary of that commit. For instance, this is what I get for a
+recent commit to [delve](https://github.com/derekparker/delve):
+
+```bash
+$ git show 8a1f36a1ce --stat
+commit 8a1f36a1ce71d708d1d82afbc2191de9aefba021
+Author: Derek Parker <derek.parker@coreos.com>
+Date:   Wed Jan 27 23:47:04 2016 -0800
+
+    dlv: Flag to print stacktrace on trace subcommand
+
+ cmd/dlv/main.go     | 45 ++++++++++-----------------------------------
+ terminal/command.go |  7 +++++--
+ 2 files changed, 15 insertions(+), 37 deletions(-)
+```
+
+The following is a description of the `diffstat` program
+
+> This  program  reads the output of diff and displays a histogram of the
+> insertions, deletions, and modifications per-file.
+
+See `man git-show` and `man diffstat` for more details.