Remove all the old references to "toy language"

This is a relic from the early development days in this repo. When I first started this repo, it was a clean-slate playground to test ideas for solving the road blocks I hit with my previous attempt at an org-mode parser. To keep things simple, I originally only had a very basic set of syntax rules that only vaguely looked similar to org-mode. Once I had things figured out, I kept developing in this repo, morphing it into a full org-mode parser. A couple of references to those early days still remained, and this patch should get rid of the last of them.

Cargo.toml

@@ -15,7 +15,8 @@ name = "organic"
 path = "src/lib.rs"
 
 [[bin]]
-name = "toy"
+# This bin exists for development purposes only. The real target of this crate is the library.
+name = "compare"
 path = "src/main.rs"
 
 [dependencies]