docs: add davidkna as a contributor (#541)

.all-contributorsrc

@@ -441,6 +441,17 @@
         "doc",
         "test"
       ]
+    },
+    {
+      "login": "davidkna",
+      "name": "David Knaack",
+      "avatar_url": "https://avatars2.githubusercontent.com/u/835177?v=4",
+      "profile": "https://github.com/davidkna",
+      "contributions": [
+        "code",
+        "doc",
+        "test"
+      ]
     }
   ],
   "contributorsPerLine": 7

README.md

@@ -20,7 +20,7 @@
       alt="Packaging status"/></a
   ><br /><a href="#contributors"
     ><img
-      src="https://badgen.net/badge/all%20contributors/41/orange"
+      src="https://badgen.net/badge/all%20contributors/42/orange"
       alt="All Contributors"
   /></a>
   <a href="https://discord.gg/8Jzqu3T"
@@ -279,6 +279,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="http://keawade.io/"><img src="https://avatars2.githubusercontent.com/u/7308850?v=4" width="100px;" alt="Keith Wade"/><br /><sub><b>Keith Wade</b></sub></a><br /><a href="https://github.com/starship/starship/commits?author=keawade" title="Code">💻</a> <a href="https://github.com/starship/starship/commits?author=keawade" title="Tests">⚠️</a></td>
     <td align="center"><a href="https://github.com/LukeAI"><img src="https://avatars3.githubusercontent.com/u/43993778?v=4" width="100px;" alt="LukeAI"/><br /><sub><b>LukeAI</b></sub></a><br /><a href="https://github.com/starship/starship/commits?author=LukeAI" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/zekesonxx"><img src="https://avatars1.githubusercontent.com/u/965509?v=4" width="100px;" alt="Zach Mertes"/><br /><sub><b>Zach Mertes</b></sub></a><br /><a href="https://github.com/starship/starship/commits?author=zekesonxx" title="Code">💻</a> <a href="https://github.com/starship/starship/commits?author=zekesonxx" title="Documentation">📖</a> <a href="https://github.com/starship/starship/commits?author=zekesonxx" title="Tests">⚠️</a></td>
+    <td align="center"><a href="https://github.com/davidkna"><img src="https://avatars2.githubusercontent.com/u/835177?v=4" width="100px;" alt="David Knaack"/><br /><sub><b>David Knaack</b></sub></a><br /><a href="https://github.com/starship/starship/commits?author=davidkna" title="Code">💻</a> <a href="https://github.com/starship/starship/commits?author=davidkna" title="Documentation">📖</a> <a href="https://github.com/starship/starship/commits?author=davidkna" title="Tests">⚠️</a></td>
   </tr>
 </table>