fixing naming of day_2

2020/day2/Cargo.toml

@@ -1,9 +0,0 @@
-[package]
-name = "day2"
-version = "0.1.0"
-authors = ["Ray Slakinski <ray.slakinski@gmail.com>"]
-edition = "2018"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]

2020/day2/src/main.rs

@@ -1,3 +0,0 @@
-fn main() {
-    println!("Hello, world!");
-}