Update security-parameters.mdx

documentation/docs/getting-started/running-opal/run-opal-server/security-parameters.mdx

@@ -6,7 +6,7 @@ In this step we show how to configure the OPAL server **security parameters**.
 
 Declaring these parameters and passing them to OPAL server will cause the server to run in **secure mode**, which means client identity verification will be active. All the values in this section are sensitive, in production you should place them in a [secrets store](#security-considerations).
 
-#### When should i run in secure mode?
+#### When should I run in secure mode?
 
 In a dev environment, secure mode is optional and you can skip this section.