diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0e8b470
--- /dev/null
+++ b/README.md
@@ -0,0 +1,25 @@
+# open
+
+A Rust implementation of MacOS's `open` command (`xdg-open`). It's written to be quickly and easily customizable, features separate local and global configs, and a zero-operand command allowing the user to specify how files should be opened differently, and for opening a project, etc.
+
+For example, for
+
+```ini
+[open]
+# zero-operand command
+command = atom .
+
+[.md]
+command = typora
+
+[.rs]
+command = atom
+
+[filename:.gitignore]
+command = vim
+shell = true
+```
+
+I can use `open` to open the directory in Atom, or I could use `open src/main.rs` to open `main.rs` in Atom, and I can specify these on a per-project basis.
+
+For directories with a local config, any missing values will be filled in by the global config (`~/.config/open.conf`), which means local configs can be shorter.
diff --git a/src/main.rs b/src/main.rs
index 5df0c6f..db9914e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -105,7 +105,6 @@ FLAGS:
 	let i_exe = config.get(ext, "command");
 	if i_exe.is_none() {
 		match ext {
-			"open" => println!("open: no zero-operand command specified."),
 			"dir" => println!("open: no command specified for directories."),
 			_ => println!("open: no command specified for \"{}\" files.", ext)
 		}