feat: address TODOs and write README.md

main.go

@@ -12,14 +12,6 @@ import (
 	_ "github.com/lib/pq"
 )
 
-// TODO: Reconcile identifiers for commands. Should prefer referring to things by Name
-// not URL
-
-// TODO: Address what happens when user provides URL that resolves to same set of posts
-// but URL slight difference than existing one. i.e. https://test.com/rss vs. https://test.com/rss/
-
-// TODO: Extract exit handling in agg command to separate function
-
 func main() {
 	if len(os.Args) < 2 {
 		fmt.Println("Not enough arguments provided. Usage: <command> <args>")