Set up Github Actions workflow

.github/workflows/on-push.yml

@@ -0,0 +1,30 @@
+name: Continuous Integration
+on: [push, pull_request, merge_group]
+
+env:
+  RUSTFLAGS: "-Dwarnings"
+  RUSTDOCFLAGS: "-Dwarnings"
+
+jobs:
+  linting:
+    name: Lint and format
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/[email protected]
+        with:
+          components: clippy, rustfmt
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo clippy --workspace --all-targets --all-features
+      - run: cargo doc --workspace --no-deps
+      - run: cargo fmt --check --all
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/[email protected]
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo test --workspace --no-run
+      - run: cargo test --workspace --no-fail-fast

.pre-commit-config.yaml

@@ -14,5 +14,3 @@ repos:
     rev: v1.1.0
     hooks:
     -   id: fmt
-    -   id: check
-    -   id: clippy

README.md

@@ -1,13 +1,17 @@
 # Typstd
 
+![Linting and testing][1]
+
+[1]: https://github.com/daskol/typstd/actions/workflows/on-push.yml/badge.svg
+
 ## Overview
 
-**Typstd** is a pretty simple language server for [Typst][1] markup language.
+**Typstd** is a pretty simple language server for [Typst][2] markup language.
 Its distinctive feature is workspace management and completion for global
 objects which are defined out of scope of text document in focus (e.g.
 bibliography references).
 
-[1]: https://github.com/typst/typst
+[2]: https://github.com/typst/typst
 
 ### Workspace