Update README.md

README.md

@@ -3,7 +3,7 @@ This is a sample HTML/CSS/JavaScript that strictly follows our naming convention
 BEM
 ---
 
-For CSS class naming, we use [BEM](https://en.bem.info/) so that we can be sure that which rule will affect which part and also which rule will NOT affect any intended part.
+For CSS class naming, we use [BEM](https://en.bem.info/) so that we can be sure that which rule will affect which part and also which rule will NOT affect any unintended part.
 
 Once tring BEM seriously in a complicated web site, we often face similar questions. Here are resources to answer such questions.