Add license and update readme. (#267)

Author: vorporeal

README.md

@@ -1,27 +1,5 @@
 # command-signatures
 
-## Cargo Dependency Tips
-
-This repo is for the `warp-command-signatures` crate that is used as a dependency in `warp-internal`. In `warp-internal/Cargo.toml` you should see a line like this under `[workspace.dependencies]`:
-
-```
-warp-command-signatures = { git = "ssh://git@github.com/warpdotdev/command-signatures.git", rev = "191f33ec01345b6fbabe06ebb73acf1a5ad062b9", default-features = false }
-```
-
-### Local Development
-
-When testing changes in `command-signatures` you can update that dependency to point to a local path. That will look something like this, depending on your directory structure:
-
-```
-warp-command-signatures = { path = "../command-signatures/command-signatures", default-features = false }
-```
-
-Note that this `command-signatures` repo contains a Cargo workspace with two crates inside it and above we're telling `warp-internal` to get it's `warp-command-signatures` dependency from the `command-signatures` crate inside the `command-signatures` directory.
-
-### Ready for Release
-
-When your changes to `command-signatures` are complete, you can go back to the original `git` dependency definition in `warp-internal` and update the `rev` (revision) to point to the latest `command-signatures` commit hash after the change has been merged. That's how you tell `warp-internal` to start using your latest changes.
-
 ## JSON Command Signatures
 
 The command signatures, a.k.a. "specs", are stored in the `./command-signatures/json`.
@@ -80,3 +58,9 @@ Options are therefore matched by the `OptionOverrides::name` field and positiona
 **Note:** Overrides for all fields on `fig_types::{Arg, Option}` may not be implemented yet.
 At the time of writing, _only_ `template` is supported.
 Others will need to be added as needed.
+
+## License
+
+This project is licensed under the MIT License. See the LICENSE file for details. Many of the signatures were adapted from Fig (https://github.com/withfig/autocomplete), which is also licensed under the MIT License.
+
+Warp requires contributors to sign a contributor license agreement (CLA) before their contributions can be merged. You can read and sign our CLA at https://cla.warp.dev.