add Remi's suggestion

docs/overrides/main.html

@@ -20,7 +20,12 @@ <h3>
     </h3>
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     <h2><b>BIDS steering group election</b></h2>
-    This year's election has started, please check your BIDS email for an <a href="https://opavote.com" target="_blank">opavote voting link</a> to cast your vote.
+    This year's election has started. 
+
+    If you are <a href="https://bids-specification.readthedocs.io/en/latest/appendices/contributors.html">a BIDS contributor</a>,
+
+    please check your BIDS email for an <a href="https://opavote.com" target="_blank">opavote voting link</a> to cast your vote.
+
     The polls will open on <b>Monday, October 21st</b> and close on <b>Friday, November 1st</b>
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