Add license and update readme

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 felixm
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,6 +1,11 @@
 # beeminder-rs
 
-A Rust client library for the [Beeminder](https://www.beeminder.com/) API.
+An incomplete Rust client library for the [Beeminder](https://www.beeminder.com/) API.
+
+Why use `curl` if you can just use `serde` and `reqwest` to have 200 dependencies?
+
+You'll find that I add endpoints as I need them. Feel free to create an issue if 
+you need a specific endpoint.
 
 ## Installation
 
@@ -44,6 +49,3 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
 MIT
 
-## Contributing
-
-Pull requests welcome!