Fix typo "IEDA" -> "IDEA" (#684)

tom-myz · web-flow · commit 660e309f4e76 · 2021-04-12T18:34:15.000+09:00
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -50,7 +50,7 @@ You can check the last publication date here:
 
 ### IDE
 
-#### IntelliJ IEDA
+#### IntelliJ IDEA
 
 Import the root directory as a Gradle project.
 
