docs: 更新README

Author: Binbiubiubiu

README.md

@@ -12,6 +12,14 @@
  $ cargo install git-semver-tags
  ```
 
+ ### Via cargo-binstall
+
+You can install cargo-llvm-cov using [cargo-binstall](https://github.com/ryankurte/cargo-binstall):
+
+``` Console
+cargo binstall git-semver-tags
+```
+
  ## Usage