Update README.md

README.md

@@ -16,7 +16,7 @@
 pip install pylyzer
 ```
 
-### cargo (rust package manager)
+### cargo (Rust package manager)
 
 ```bash
 cargo install pylyzer --locked
@@ -29,7 +29,7 @@ git clone https://github.com/mtshiba/pylyzer.git
 cargo install --path . --locked
 ```
 
-Make sure that `cargo/rustc` is up-to-date, as pylyzer may be written with the latest language features.
+Make sure that `cargo`/`rustc` is up-to-date, as pylyzer may be written with the latest (stable) language features.
 
 ### [GitHub Releases](https://github.com/mtshiba/pylyzer/releases/latest)
 
@@ -134,7 +134,7 @@ pylyzer converts Python ASTs to Erg ASTs and passes them to Erg's type checker.
   * [x] type parameter syntax
   * [x] type narrowing
   * [ ] others
-* `collections.abc`
+* [ ] `collections.abc`
   * [x] `Iterable`
   * [x] `Iterator`
   * [x] `Mapping`
@@ -145,6 +145,14 @@ pylyzer converts Python ASTs to Erg ASTs and passes them to Erg's type checker.
 * [ ] `pyi` (stub) files support
 * [ ] glob pattern file check
 
+## Join us!
+
+We are looking for contributors to help us improve pylyzer. If you are interested in contributing and have any questions, please feel free to contact us.
+
+* [Discord (Erg language)](https://discord.gg/kQBuaSUS46)
+  * [#pylyzer](https://discord.com/channels/1006946336433774742/1056815981168697354)
+* [GitHub discussions](https://github.com/mtshiba/pylyzer/discussions)
+
 ---
 
 <span id="1" style="font-size:x-small"><sup>1</sup> The performance test was conducted on MacBook (Early 2016) with 1.1 GHz Intel Core m3 processor and 8 GB 1867 MHz LPDDR3 memory.[↩](#f1)</span>