Added license and updated README.

LICENSE

+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+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 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.
+
+For more information, please refer to <http://unlicense.org/>
\ No newline at end of file

README.md

 # Zig Common Tasks Website
 
-This website was created with [Magnanimous](https://renatoathaydes.github.io/magnanimous/).
+This repository contains the `Zig Common Tasks` website, which is built with [Magnanimous](https://renatoathaydes.github.io/magnanimous/).
 
 All Zig samples are in the [source/processed/samples/](source/processed/samples) directory.
 
@@ -15,7 +15,28 @@ zig build test
 To build the website:
 
 ```bash
-magnanimous
+magnanimous -style monokai
 ```
 
 Get Magnanimous by downloading a binary from its [Releases Page](https://github.com/renatoathaydes/magnanimous/releases) or with `go get -u github.com/renatoathaydes/magnanimous` if you have Go installed.
+
+## Contributing
+
+Contributions are welcome!
+
+Guidelines:
+
+* samples should not be too trivial, but also not complex.
+* must only use Zig's standard library.
+* preferrably, use tests... `main` also ok if side effects are unavoidable.
+
+All samples are [unlicensed](https://unlicense.org/) and belong to the public domain!
+
+## Project Home
+
+This project's source code is currently hosted on:
+
+* [GitHub](https://github.com/renatoathaydes/zig-common-tasks/)
+* [OpenCode](https://www.opencode.net/renatoathaydes/zig-common-tasks/)
+
+Feel free to add to other hosts.