add link to docs

packages/aws-cdk-lib/aws-cognito/lib/user-pool-idps/oidc.ts

@@ -136,6 +136,7 @@ export class UserPoolIdentityProviderOidc extends UserPoolIdentityProviderBase {
       if (!Token.isUnresolved(name) && (name.length < 3 || name.length > 32)) {
         throw new Error(`Expected provider name to be between 3 and 32 characters, received ${name} (${name.length} characters)`);
       }
+      // https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-cognito-userpoolidentityprovider.html#aws-resource-cognito-userpoolidentityprovider-properties
       if (!name.match(/[^_\p{Z}][\p{L}\p{M}\p{S}\p{N}\p{P}][^_\p{Z}]+/)) {
         throw new Error(`Expected provider name must match [^_\p{Z}][\p{L}\p{M}\p{S}\p{N}\p{P}][^_\p{Z}]+, received ${name}`);
       }