Docs: Update Sentinel index

- Remove doubled "tokens"

website/pages/docs/enterprise/sentinel/index.mdx

@@ -37,7 +37,7 @@ to root token generation cannot support EGPs because it's already the mechanism
 of last resort if, for instance, all clients are locked out of Vault due to
 misconfigured EGPs.
 
-Like with ACLs, [root tokens](/docs/concepts/tokens#root-tokens) tokens
+Like with ACLs, [root tokens](/docs/concepts/tokens#root-tokens)
 are not subject to Sentinel policy checks.
 
 Sentinel execution should be considered to be significantly slower than normal