docs: add joshuakgoldberg as a contributor for ideas (#1238)

Adds @JoshuaKGoldberg as a contributor for ideas.

This was requested by JoshuaKGoldberg [in this
comment](#982 (comment))

---------

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -14,7 +14,8 @@
         "tool",
         "doc",
         "infra",
-        "test"
+        "test",
+        "ideas"
       ],
       "login": "JoshuaKGoldberg",
       "name": "Josh Goldberg",

README.md

@@ -88,7 +88,7 @@ Thanks! 💖
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://typescriptcourse.com/tutorials"><img src="https://avatars.githubusercontent.com/u/3806031?v=4?s=100" width="100px;" alt="Joe Previte"/><br /><sub><b>Joe Previte</b></sub></a><br /><a href="https://github.com/JoshuaKGoldberg/create-typescript-app/issues?q=author%3Ajsjoeio" title="Bug reports">🐛</a> <a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=jsjoeio" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://blog.johnnyreilly.com/"><img src="https://avatars.githubusercontent.com/u/1010525?v=4?s=100" width="100px;" alt="John Reilly"/><br /><sub><b>John Reilly</b></sub></a><br /><a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=johnnyreilly" title="Code">💻</a> <a href="#ideas-johnnyreilly" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/JoshuaKGoldberg/create-typescript-app/issues?q=author%3Ajohnnyreilly" title="Bug reports">🐛</a> <a href="#maintenance-johnnyreilly" title="Maintenance">🚧</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="http://www.joshuakgoldberg.com"><img src="https://avatars.githubusercontent.com/u/3335181?v=4?s=100" width="100px;" alt="Josh Goldberg"/><br /><sub><b>Josh Goldberg</b></sub></a><br /><a href="https://github.com/JoshuaKGoldberg/create-typescript-app/issues?q=author%3AJoshuaKGoldberg" title="Bug reports">🐛</a> <a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=JoshuaKGoldberg" title="Code">💻</a> <a href="#maintenance-JoshuaKGoldberg" title="Maintenance">🚧</a> <a href="https://github.com/JoshuaKGoldberg/create-typescript-app/pulls?q=is%3Apr+reviewed-by%3AJoshuaKGoldberg" title="Reviewed Pull Requests">👀</a> <a href="#tool-JoshuaKGoldberg" title="Tools">🔧</a> <a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=JoshuaKGoldberg" title="Documentation">📖</a> <a href="#infra-JoshuaKGoldberg" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a> <a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=JoshuaKGoldberg" title="Tests">⚠️</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="http://www.joshuakgoldberg.com"><img src="https://avatars.githubusercontent.com/u/3335181?v=4?s=100" width="100px;" alt="Josh Goldberg"/><br /><sub><b>Josh Goldberg</b></sub></a><br /><a href="https://github.com/JoshuaKGoldberg/create-typescript-app/issues?q=author%3AJoshuaKGoldberg" title="Bug reports">🐛</a> <a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=JoshuaKGoldberg" title="Code">💻</a> <a href="#maintenance-JoshuaKGoldberg" title="Maintenance">🚧</a> <a href="https://github.com/JoshuaKGoldberg/create-typescript-app/pulls?q=is%3Apr+reviewed-by%3AJoshuaKGoldberg" title="Reviewed Pull Requests">👀</a> <a href="#tool-JoshuaKGoldberg" title="Tools">🔧</a> <a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=JoshuaKGoldberg" title="Documentation">📖</a> <a href="#infra-JoshuaKGoldberg" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a> <a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=JoshuaKGoldberg" title="Tests">⚠️</a> <a href="#ideas-JoshuaKGoldberg" title="Ideas, Planning, & Feedback">🤔</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://twitter.com/Jolg42"><img src="https://avatars.githubusercontent.com/u/1328733?v=4?s=100" width="100px;" alt="Joël Galeran"/><br /><sub><b>Joël Galeran</b></sub></a><br /><a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=jolg42" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/jaas666"><img src="https://avatars.githubusercontent.com/u/30204147?v=4?s=100" width="100px;" alt="Juan A."/><br /><sub><b>Juan A.</b></sub></a><br /><a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=jaas666" title="Code">💻</a> <a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=jaas666" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://kristo-baricevic.github.io/"><img src="https://avatars.githubusercontent.com/u/108290619?v=4?s=100" width="100px;" alt="Kristo Baricevic"/><br /><sub><b>Kristo Baricevic</b></sub></a><br /><a href="https://github.com/JoshuaKGoldberg/create-typescript-app/commits?author=kristo-baricevic" title="Code">💻</a></td>