Update repository link

Author: zecakeh

Cargo.toml

@@ -6,7 +6,7 @@ keywords = ["matrix", "chat", "messaging", "ruma"]
 license = "MIT"
 name = "ruma-client"
 readme = "README.md"
-repository = "https://github.com/ruma/ruma"
+repository = "https://github.com/ruma/ruma-client"
 version = "0.15.0"
 edition = "2021"
 rust-version = "1.81"