chore: Add more linters

.editorconfig

@@ -0,0 +1,11 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[{*.json,*.yaml,*.yml}]
+indent_size = 2
+indent_style = space

.github/workflows/main.yml

@@ -21,3 +21,13 @@ jobs:
     - uses: golangci/golangci-lint-action@3a919529898de77ec3da873e3063ca4b10e7f5cc
       with:
         version: v1.55.2
+    - uses: DavidAnson/markdownlint-cli2-action@510b996878fc0d1a46c8a04ec86b06dbfba09de7
+      with:
+        globs: '**/*.md'
+    - uses: editorconfig-checker/action-editorconfig-checker@d2ed4fd072ae6f887e9407c909af0f585d2ad9f4
+    - run: editorconfig-checker
+    - name: actionlint
+      run: |
+        bash <(curl https://raw.githubusercontent.com/rhysd/actionlint/main/scripts/download-actionlint.bash)
+        ./actionlint -color
+      shell: bash

.markdownlint.json

@@ -0,0 +1,8 @@
+{
+  "MD013": {
+    "line_length": 80
+  },
+  "MD026": {
+    "punctuation": ""
+  }
+}