chore: textlintの設定ファイルを追加

Author: 3w36zj6

.textlintrc.json

@@ -0,0 +1,8 @@
+{
+  "plugins": ["html"],
+  "filters": {},
+  "rules": {
+    "preset-jtf-style": true,
+    "preset-ja-technical-writing": true
+  }
+}