add contribution guide

.github/workflows/links.yml

@@ -1,9 +1,6 @@
 name: Check Markdown links
 
 on:
-  push:
-    branches:
-      - main
   schedule:
     - cron: '10 20 * * *'
 

Makefile

@@ -1,4 +1,6 @@
 
+all: toc lint
+
 toc:
 	npx markdown-toc --bullets "-" -i README.md
 

README.md

@@ -2,6 +2,10 @@
 
 This repository lists some awesome projects written in Zig, maintained by [ZigCC community](https://ziglang.cc).
 
+## Contributing
+
+If you find a well-maintained library that is not yet included here, welcome to submit it via a pull request. Just be sure to execute `make all` before open PR.
+
 ## Contents
 
 <!-- toc -->
@@ -88,19 +92,18 @@ TOC is generated by [markdown-toc](https://github.com/jonschlinkert/markdown-toc
 
 ### Package and Version Manager
 
-- [mitchellh/zig-overlay](https://github.com/mitchellh/zig-overlay) : Nix flake for the Zig compiler.
-- [Cloudef/nix-zig-stdenv](https://github.com/Cloudef/nix-zig-stdenv) : Zig based cross-compiling toolchain.
-- [joachimschmidt557/zigpkgs](https://github.com/joachimschmidt557/zigpkgs) : A collection of zig packages built with Nix.
-- [nektro/zigmod](https://github.com/nektro/zigmod) : 📦 A package manager for the Zig programming language.
-- [mattnite/gyro](https://github.com/mattnite/gyro) : A Zig package manager with an index, build runner, and build dependencies.
+- [zigcc/asdf-zig](https://github.com/zigcc/asdf-zig) : zig plugin for asdf version manager. [https://github.com/asdf-vm/asdf](https://github.com/asdf-vm/asdf)
 - [marler8997/zigup](https://github.com/marler8997/zigup) : Download and manage zig compilers.
 - [zigtools/zpm](https://github.com/zigtools/zpm) : Zig package manager helper.
-- [cheetah/asdf-zig](https://github.com/cheetah/asdf-zig) : zig plugin for asdf version manager. [https://github.com/asdf-vm/asdf](https://github.com/asdf-vm/asdf)
 - [goto-bus-stop/setup-zig](https://github.com/goto-bus-stop/setup-zig) : Setup Zig for GitHub Action Workflows.
 - [korandoru/setup-zig](https://github.com/korandoru/setup-zig) : Set up your GitHub Actions workflow with a specific version of Zig.
-- [thejoshwolfe/zig-download](https://github.com/thejoshwolfe/zig-download) : Tool for downloading precompiled zig tarballs from [https://ziglang.org/download/](https://ziglang.org/download/). This is basically the same thing as [zigup](https://github.com/marler8997/zigup), but I wrote this one as an exercise.
 - [jsomedon/night.zig](https://github.com/jsomedon/night.zig) : Simple tool that just install & update zig nightly.
 - [matklad/hello-getzig](https://github.com/matklad/hello-getzig) : getzig is an idea for a zig version manager along the lines of gradle wrapper.
+- [mitchellh/zig-overlay](https://github.com/mitchellh/zig-overlay) : Nix flake for the Zig compiler.
+- [Cloudef/nix-zig-stdenv](https://github.com/Cloudef/nix-zig-stdenv) : Zig based cross-compiling toolchain.
+- [joachimschmidt557/zigpkgs](https://github.com/joachimschmidt557/zigpkgs) : A collection of zig packages built with Nix.
+- [nektro/zigmod](https://github.com/nektro/zigmod) : 📦 A package manager for the Zig programming language.
+- [mattnite/gyro](https://github.com/mattnite/gyro) : A Zig package manager with an index, build runner, and build dependencies.
 
 ## Data Structure and Algorithm