Add @saulshanabrook as a contributor

Author: saulshanabrook

.all-contributorsrc

@@ -21,6 +21,18 @@
         "ideas",
         "fundingFinding"
       ]
+    },
+    {
+      "login": "saulshanabrook",
+      "name": "Saul Shanabrook",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/1186124?v=4",
+      "profile": "https://www.saulshanabrook.com/",
+      "contributions": [
+        "code",
+        "projectManagement",
+        "review",
+        "infra"
+      ]
     }
   ],
   "contributorsPerLine": 7

README.md

@@ -1,7 +1,7 @@
 # jupyterlab-git
 
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-2-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/jupyterlab/jupyterlab-git/master?urlpath=lab/tree/examples/demo.ipynb) [![Build Status](https://travis-ci.org/jupyterlab/jupyterlab-git.svg?branch=master)](https://travis-ci.org/jupyterlab/jupyterlab-git) [![Version](https://img.shields.io/npm/v/@jupyterlab/git.svg)](https://www.npmjs.com/package/@jupyterlab/git) [![Version](https://img.shields.io/pypi/v/jupyterlab-git.svg)](https://pypi.org/project/jupyterlab-git/) [![Downloads](https://img.shields.io/npm/dm/@jupyterlab/git.svg)](https://www.npmjs.com/package/@jupyterlab/git) [![Version](https://img.shields.io/conda/vn/conda-forge/jupyterlab-git.svg)](https://anaconda.org/conda-forge/jupyterlab-git) [![Downloads](https://img.shields.io/conda/dn/conda-forge/jupyterlab-git.svg)](https://anaconda.org/conda-forge/jupyterlab-git)
@@ -168,6 +168,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <table>
   <tr>
     <td align="center"><a href="https://github.com/ellisonbg"><img src="https://avatars3.githubusercontent.com/u/27600?v=4" width="100px;" alt=""/><br /><sub><b>Brian E. Granger</b></sub></a><br /><a href="#projectManagement-ellisonbg" title="Project Management">📆</a> <a href="#design-ellisonbg" title="Design">🎨</a> <a href="#ideas-ellisonbg" title="Ideas, Planning, & Feedback">🤔</a> <a href="#fundingFinding-ellisonbg" title="Funding Finding">🔍</a></td>
+    <td align="center"><a href="https://www.saulshanabrook.com/"><img src="https://avatars1.githubusercontent.com/u/1186124?v=4" width="100px;" alt=""/><br /><sub><b>Saul Shanabrook</b></sub></a><br /><a href="https://github.com/jupyterlab/jupyterlab-git/commits?author=saulshanabrook" title="Code">💻</a> <a href="#projectManagement-saulshanabrook" title="Project Management">📆</a> <a href="https://github.com/jupyterlab/jupyterlab-git/pulls?q=is%3Apr+reviewed-by%3Asaulshanabrook" title="Reviewed Pull Requests">👀</a> <a href="#infra-saulshanabrook" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
   </tr>
 </table>