Update Julia version requirement to 1.10.8

Author: penelopeysm

README.md

@@ -15,7 +15,7 @@
 
 ## Get started
 
-Install Julia (see [the official Julia website](https://julialang.org/install/); you will need at least Julia 1.10 for the latest version of Turing.jl).
+Install Julia (see [the official Julia website](https://julialang.org/install/); you will need at least Julia 1.10.8 for the latest version of Turing.jl).
 Then, launch a Julia REPL and run:
 
 ```julia