fix missed space / correction (#1887)

* Update set-rate-limits.md

* Update whats-new.md

Author: reject-i

developer-tools/dashboard/how-to/secure-an-api/set-rate-limits.md

@@ -25,7 +25,7 @@ Set rate limiting in the API key's **Settings** tab **Key Credit Limits** sectio
 - **Per day total credits** restricts total daily credit usage for the API key. Set a limit on number of
     credits per day in integers, for example, 20000. The value `0` means default limits are applied.
 
-    When the number of used credits reach this limit, all requests will be rejected until the next day (00:00 UTC).
+    When the number of used credits reaches this limit, all requests will be rejected until the next day (00:00 UTC).
 
 If you exceed the specified limits, you'll receive a JSON response with an
 [HTTP error status code `429`](/services/reference/ethereum/json-rpc-methods#http-errors). For example:
@@ -41,4 +41,4 @@ If you exceed the specified limits, you'll receive a JSON response with an
     "details": "You have surpassed your user-defined key throughput limit setting. To make more requests with this key, review key setting configurations."
   }
 }
-```
+```

docs/whats-new.md

@@ -11,7 +11,7 @@ of the [MetaMask developer page](https://metamask.io/developer/).
 
 ## February
 
-- Documented [Unichain Mainnet](/services/reference/unichain) support.([#1878](https://github.com/MetaMask/metamask-docs/pull/1878))
+- Documented [Unichain Mainnet](/services/reference/unichain) support. ([#1878](https://github.com/MetaMask/metamask-docs/pull/1878))
 
 ## January 2025