Update website/src/pages/en/token-api/guides/polymarket.mdx

Co-authored-by: Benoît Rouleau <1059139+benface@users.noreply.github.com>

Author: brandonleekramer

website/src/pages/en/token-api/guides/polymarket.mdx

@@ -60,7 +60,7 @@ Use User Lookup without an address to pull the global leaderboard ranked by PnL,
 
 Use Market Open Interest alongside OHLCV to separate price moves from real capital commitment. A price spike with flat open interest is noise. A price move backed by rising OI (new splits) signals genuine conviction. Market Activity gives you the raw on-chain logs to verify.
 
-**4. Platform health and trend monitoring**
+### 4. Platform health and trend monitoring
 
 Use Platform Aggregates to track Polymarket's overall trajectory, including daily volume trends, total open interest growth, fee revenue, and the split-to-merge ratio. This is essential context for anyone writing about prediction markets, building analytics dashboards, or evaluating Polymarket as a platform.