Update concepts-certificate-rotation.md

Author: GennadNY

articles/postgresql/single-server/concepts-certificate-rotation.md

@@ -24,7 +24,7 @@ As per the industry's compliance requirements, CA vendors began revoking CA cert
 
 The new certificate is rolled out and in effect starting December, 2022 (12/2022). 
 
-## What change scheduled to be be performed starting December 2022 (12/2022)?
+## What change scheduled to be performed starting December 2022 (12/2022)?
 
 Starting December 2022, the [BaltimoreCyberTrustRoot root certificate](https://www.digicert.com/CACerts/BaltimoreCyberTrustRoot.crt.pem) is  replaced with a **compliant version** known as [DigiCertGlobalRootG2 root certificate ](https://cacerts.digicert.com/DigiCertGlobalRootG2.crt.pem). If your applications take advantage of **verify-ca** or **verify-full** as value of [**sslmode** parameter](https://www.postgresql.org/docs/current/libpq-ssl.html) in the database client connectivity need to follow directions to add new certificates to certificate store to maintain connectivity.