Auto merge of #7529 - giraffate:update_node_version, r=flip1995,llogiq

Use node v12.x in CI

In rust-lang/rust-clippy#7528 (comment), remark-cli version has been updated recently and it requires to use ESM module: https://github.com/remarkjs/remark/releases/tag/14.0.0. Node version in CI was v10.24.1, it seems to be old.

changelog: none

Author: bors

.github/workflows/remark.yml

@@ -20,6 +20,8 @@ jobs:
 
     - name: Setup Node.js
       uses: actions/[email protected]
+      with:
+        node-version: '12.x'
 
     - name: Install remark
       run: npm install remark-cli remark-lint remark-lint-maximum-line-length remark-preset-lint-recommended remark-gfm

doc/basics.md

@@ -166,8 +166,8 @@ rustup component add clippy
 ```
 
 > **DO NOT** install using `cargo install --path . --force` since this will overwrite rustup
-[proxies](https://rust-lang.github.io/rustup/concepts/proxies.html). That is, `~/.cargo/bin/cargo-clippy` and
-`~/.cargo/bin/clippy-driver` should be hard or soft links to `~/.cargo/bin/rustup`. You can repair these by running
-`rustup update`.
+> [proxies](https://rust-lang.github.io/rustup/concepts/proxies.html). That is, `~/.cargo/bin/cargo-clippy` and
+> `~/.cargo/bin/clippy-driver` should be hard or soft links to `~/.cargo/bin/rustup`. You can repair these by running
+> `rustup update`.
 
 [glossary]: https://rustc-dev-guide.rust-lang.org/appendix/glossary.html