Add spell checking step to the CI

.woodpecker.yaml

@@ -11,6 +11,18 @@ clone:
       recursive: true
 
 steps:
+  # Check for typos
+  typos:
+    image: alpine:edge
+    commands:
+      - apk add curl jq
+      - curl -s "https://api.github.com/repos/crate-ci/typos/releases/latest" | jq -r '.assets[] | select(.name | contains("unknown-linux-musl")) | .browser_download_url' | xargs -n 1 curl -L -o typos.tar.gz
+      - tar -zxvf typos.tar.gz ./typos
+      - ./typos
+    failure: ignore
+    when:
+      event: [push, pull_request, manual]
+
   # Build Zola static files
   build:
     image: alpine:edge