fix typo

README.md

@@ -38,7 +38,7 @@ player.remove(p1.id);
 
 - form
 
-> vaitation.validator cann be [validator](https://www.npmjs.com/package/validator) string or a boolean function
+> vaitation.validator can be [validator](https://www.npmjs.com/package/validator) string or a boolean function
 
 ```
 let validation = {name:{type:'text',element:'input',validator:'isLength',options:{max:20,min:10},required:true}}
@@ -47,9 +47,9 @@ let validation = {name:{type:'text',element:'input',convert:(x){return x.toUpper
 let sample = Form(validation);
 sample.fill(post);
 if(sample.isValid()){
-  pug.renderfile('form.js',sample);
+  pug.renderfile('form.pug',sample);
 }else{
-  pug.renderfile('success.js',sample);
+  pug.renderfile('success.pug',sample);
 }
 //full pug and valitation file will follow soon
 ```