Updated Cargo.toml for C-METADATA in Rust API Guidelines

Author: LMH01

Cargo.toml

@@ -2,10 +2,18 @@
 name = "simple_graph_algorithms"
 version = "0.1.0"
 edition = "2021"
+authors = "Louis H."
+description  = "A library with the goal of making running graph algorithms as easy as possible."
+license = "MIT"
+repository = "https://github.com/LMH01/simple_graph_algorithms"
+keywords = ["graph", "pathfinding", "dijkstra", "bellman-ford", "easy-to-use"]
+categories = ["algorithms"]
+readme = "README.md"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [features]
+default = ["from_instruction", "serde"] #TODO remove before release
 from_instruction = []
 serde = ["dep:serde"]