use tailwind syntax for text-centre

Author: hypha

src/content/pages/programme/voting.mdx

@@ -15,7 +15,7 @@ educational and entertaining programme.  Your feedback is an important
 ingredient in this refinement and curation process.
 
 
-<div style={{textAlign: "center"}}>
+<div class="text-center">
 
 Community Voting is <b>closed</b>.