Docs: MacOS -> macOS

Author: Simran-B

docs/Manual/Deployment/Kubernetes/Tls.md

@@ -26,15 +26,15 @@ kubectl get secret <deploy-name>-ca --template='{{index .data "ca.crt"}}' | base
 To install a CA certificate in Windows, follow the
 [procedure described here](http://wiki.cacert.org/HowTo/InstallCAcertRoots).
 
-### MacOS
+### macOS
 
-To install a CA certificate in MacOS, run:
+To install a CA certificate in macOS, run:
 
 ```bash
 sudo /usr/bin/security add-trusted-cert -d -r trustRoot -k /Library/Keychains/System.keychain ca.crt
 ```
 
-To uninstall a CA certificate in MacOS, run:
+To uninstall a CA certificate in macOS, run:
 
 ```bash
 sudo /usr/bin/security remove-trusted-cert -d ca.crt