docs: add danvk as a contributor for ideas (#1251)

Adds @danvk as a contributor for ideas.

This was requested by JoshuaKGoldberg [in this
comment](#1244 (comment))

---------

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>

Author: allcontributors[bot]

.all-contributorsrc

@@ -401,7 +401,8 @@
       "avatar_url": "https://avatars.githubusercontent.com/u/98301?v=4",
       "profile": "https://effectivetypescript.com",
       "contributions": [
-        "bug"
+        "bug",
+        "ideas"
       ]
     },
     {

README.md

@@ -72,7 +72,7 @@ Thanks! 💖
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/garuna-m6"><img src="https://avatars.githubusercontent.com/u/23234342?v=4?s=100" width="100px;" alt="Anurag"/><br /><sub><b>Anurag</b></sub></a><br /><a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=garuna-m6" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="http://biplobsd.me"><img src="https://avatars.githubusercontent.com/u/43641536?v=4?s=100" width="100px;" alt="Biplob Sutradhar"/><br /><sub><b>Biplob Sutradhar</b></sub></a><br /><a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=biplobsd" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://conormeagher.com/"><img src="https://avatars.githubusercontent.com/u/363781?v=4?s=100" width="100px;" alt="Conor Meagher"/><br /><sub><b>Conor Meagher</b></sub></a><br /><a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=conrmahr" title="Code">💻</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https://effectivetypescript.com"><img src="https://avatars.githubusercontent.com/u/98301?v=4?s=100" width="100px;" alt="Dan Vanderkam"/><br /><sub><b>Dan Vanderkam</b></sub></a><br /><a href="https://github.com/JoshuaKGoldberg/create-typescript-app/issues?q=author%3Adanvk" title="Bug reports">🐛</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://effectivetypescript.com"><img src="https://avatars.githubusercontent.com/u/98301?v=4?s=100" width="100px;" alt="Dan Vanderkam"/><br /><sub><b>Dan Vanderkam</b></sub></a><br /><a href="https://github.com/JoshuaKGoldberg/create-typescript-app/issues?q=author%3Adanvk" title="Bug reports">🐛</a> <a href="#ideas-danvk" title="Ideas, Planning, & Feedback">🤔</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/DanexQ"><img src="https://avatars.githubusercontent.com/u/72567464?v=4?s=100" width="100px;" alt="Daniel"/><br /><sub><b>Daniel</b></sub></a><br /><a href="#infra-DanexQ" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://roe.dev/"><img src="https://avatars.githubusercontent.com/u/28706372?v=4?s=100" width="100px;" alt="Daniel Roe"/><br /><sub><b>Daniel Roe</b></sub></a><br /><a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=danielroe" title="Code">💻</a></td>
     </tr>