Clarify docs

Author: aditya-shrey

packages/@aws-cdk/aws-route53resolver-alpha/README.md

@@ -125,7 +125,7 @@ To import by ID:
 const existingRuleGroup = route53resolver.FirewallRuleGroup.fromFirewallRuleGroupId(this, 'ImportedRuleGroup', 'fwr-123456');
 ```
 
-To import by name from the CDK context:
+To import by name:
 
 ```ts
 const existingRuleGroupByName = route53resolver.FirewallRuleGroup.fromFirewallRuleGroupName(this, 'ImportedRuleGroup', 'MyFirewallRuleGroup');