Use new main branch name

README.md

@@ -1,4 +1,4 @@
-![Logo](https://raw.githubusercontent.com/ctz/rustls/master/admin/rustls-logo-web.png)
+![Logo](https://raw.githubusercontent.com/ctz/rustls/main/admin/rustls-logo-web.png)
 
 **rustls-native-certs** allows [rustls](https://github.com/ctz/rustls) to use the
 platform's native certificate store when operating as a TLS client.
@@ -21,7 +21,7 @@ rustls-native-certs is currently in development.
 
 If you'd like to help out, please see [CONTRIBUTING.md](CONTRIBUTING.md).
 
-[![Build Status](https://dev.azure.com/ctz99/ctz/_apis/build/status/ctz.rustls-native-certs?branchName=master)](https://dev.azure.com/ctz99/ctz/_build/latest?definitionId=5&branchName=master)
+[![Build Status](https://dev.azure.com/ctz99/ctz/_apis/build/status/ctz.rustls-native-certs?branchName=main)](https://dev.azure.com/ctz99/ctz/_build/latest?definitionId=5&branchName=main)
 [![Documentation](https://docs.rs/rustls-native-certs/badge.svg)](https://docs.rs/rustls-native-certs/)
 
 ## Release history: