Update index.html

kamisamatekitou · web-flow · commit 0aa2e624c39c · 2020-11-22T18:15:10.000+09:00
diff --git a/index.html b/index.html
@@ -1,4 +1,4 @@
-<html>
+<html lang="ja">
 <head>
 <title>CoderDojo 五反田</title>
 </head>
