README: real CSS now renders - center stat table, verify bigger names

Gitea's default sanitizer strips style="" from every element; added a
markup.sanitizer allowlist for style on common tags (app.ini, this
Gitea instance) and restarted the service. Now that it's actually
respected: table centered via style="margin:0 auto" (the deprecated
align attribute never reliably did this), and the app-name font-size
bump from the last commit should finally show up too.

README.md

@@ -10,7 +10,7 @@
 [![YouTube](https://img.shields.io/badge/YouTube-red?style=for-the-badge&logo=youtube&logoColor=white)](https://www.youtube.com/@nomadianation)
 -->
 
-<table>
+<table style="margin: 0 auto;">
 <tr>
 <td align="center">🖥️<br/><strong style="font-size:1.6em;">11</strong><br/>fleet hosts</td>
 <td align="center">🐳<br/><strong style="font-size:1.6em;">53</strong><br/>compose stacks</td>