docs: update readme

README.md

@@ -1,13 +1,12 @@
-# Hexd  🔍
+# hexd  🔍
 ![GitHub License](https://img.shields.io/github/license/sebastian-j-ibanez/hexd?color=red)
 
-Hexd is a CLI program that outputs a hexdump of binary files.
+hexd is a CLI program that creates hex dumps.
+
+## Usage
+`hexd [file]`
 
 ## Building the project
-The project can be built with `make`. The `hexd` binary will be generated in the build folder.
+The project is built using `make`. The default `make` target will create a `hexd` binary in the build folder.
 
 ***Note:*** If you use clangd, it is recommended to generate clangd config files with [compiledb](https://github.com/nickdiego/compiledb/tree/master).
-
-## Purpose
-I'm writing hexd to learn more about binary files. It's also an opportunity for me to write more C.
-