README: update git clone to reference the latest release

Author: girvel

README.md

@@ -73,7 +73,7 @@ See as a test at [/tests/test_use_case.lua:19](/tests/test_use_case.lua#L19)
 
 ## Installation
 
-Copy the [raw contents of init.lua from the latest release](https://raw.githubusercontent.com/girvel/ldump/refs/tags/v1.1.0/init.lua) into your `lib/ldump.lua` or `git clone https://github.com/girvel/ldump` inside the `lib/` — you still would be able to do `require("ldump")`.
+Copy the [raw contents of init.lua from the latest release](https://raw.githubusercontent.com/girvel/ldump/refs/tags/v1.1.0/init.lua) into your `lib/ldump.lua` or `git clone -b v1.1.0 https://github.com/girvel/ldump` inside the `lib/` — you still would be able to do `require("ldump")`.
 
 
 ## Overriding serialization