Update README.md

Author: tlienart

README.md

@@ -11,12 +11,18 @@ LiveServer is inspired from Python's [`http.server`](https://docs.python.org/3/l
 
 ## Installation
 
-To install it in Julia ≥ 1.0, use the package manager with
+To install it in Julia ≥ 1.3, use the package manager with
 
 ```julia-repl
 pkg> add LiveServer
 ```
 
+For Julia `[1.0, 1.3)`, you can use LiveServer's version 0.7.4:
+
+```julia-repl
+pkg> add LiveServer@0.7.4
+```
+
 ## Usage
 
 The main function `LiveServer` exports is `serve` which starts listening to the current folder and makes its content available to a browser.