ci: Spell checking with cspell

.cspell/cspell.json

@@ -0,0 +1,19 @@
+{
+    "version": "0.2",
+    "language": "en",
+    "words": [
+        "alumet",
+        "mdbook",
+        "github",
+        "rustc",
+        "toolchain",
+        "runnable",
+        "RAPL",
+        "NVIDIA",
+        "perf",
+        "perf-events",
+        "powercap",
+        "sysfs",
+        "jetson",
+    ]
+}

.github/workflows/check.yml

@@ -0,0 +1,16 @@
+name: Check
+on: [push]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Spell check
+        uses: streetsidesoftware/cspell-action@v6
+        with:
+          root: src
+          incremental_files_only: false
+          config: .cspell/cspell.json