[CI] Spell check en pages only (#4816)

Author: chalin

.github/workflows/check-spelling.yml

@@ -13,7 +13,7 @@ jobs:
         with:
           # Files should be consistent with check:spelling files
           files: |
-            content/**/*.md
+            content/en/*.md
             layouts/**/*.md
             data/**/*
           config: .cspell.yml

package.json

@@ -45,7 +45,7 @@
     "check:links:internal": "npm run _check:links:internal",
     "check:links": "npm run _check:links",
     "check:markdown": "scripts/check-markdown-wrapper.sh",
-    "check:spelling": "npx cspell --no-progress -c .cspell.yml content data 'layouts/**/*.md'",
+    "check:spelling": "npx cspell --no-progress -c .cspell.yml content/en data 'layouts/**/*.md'",
     "check:text": "npm run _check:text -- ",
     "check": "npm run seq -- $(npm run -s _list:check:*)",
     "clean": "make clean",