chore(plugins/stock): move to community

source/plugins/community/stock/README.md

@@ -3,6 +3,7 @@
   <tr><th colspan="2"><h3>💹 Stock prices</h3></th></tr>
   <tr><td colspan="2" align="center"><p>This plugin displays the stock market price of a given company.</p>
 </td></tr>
+<tr><th>Authors</th><td><a href="https://github.com/lowlighter">@lowlighter</a></td></tr>
   <tr>
     <th rowspan="3">Supported features<br><sub><a href="metadata.yml">→ Full specification</a></sub></th>
     <td><a href="/source/templates/classic"><code>📗 Classic template</code></a> <a href="/source/templates/repository"><code>📘 Repository template</code></a></td>

source/plugins/community/stock/metadata.yml

@@ -1,9 +1,10 @@
 name: "💹 Stock prices"
-category: social
+category: community
 description: This plugin displays the stock market price of a given company.
 examples:
   default: https://github.com/lowlighter/metrics/blob/examples/metrics.plugin.stock.svg
-index: 8
+authors:
+  - lowlighter
 supports:
   - user
   - organization