Normalize name of SIP “Sealed types”

julienrf · julienrf · commit 046797af822c · 2022-05-03T16:15:14.000+02:00
diff --git a/_sips/sips/2021-05-18-sealed-types.md b/_sips/sips/2021-05-18-sealed-types.md
@@ -1,6 +1,6 @@
 ---
 layout: sip
-title: Sealed Types
+title: SIP-NN - Sealed Types
 vote-status: pending
 permalink: /sips/:title.html
 redirect_from: /sips/pending/sealed-types.html
