typos fixed

en/01.4.md

@@ -86,7 +86,7 @@ LiteIDE features.
 		
 	Replace `GOROOT=$HOME/go` to your Go installation path, save it. 
 - $GOPATH
-	$GOPATH is the path that contains a list of projects. Open the command tool (or press `Ctrl+` in LiteIDE), then type `go help gopath` for more details.
+	$GOPATH is the path that contains a list of projects. Open the command tool (or press ``Ctrl+` ``in LiteIDE), then type `go help gopath` for more details.
 	It's very easy to view and change $GOPATH in LiteIDE. Follow `View - Setup GOPATH` to view and change these values.
 	
 ## Sublime Text
@@ -106,11 +106,11 @@ Here I'm going to introduce you the Sublime Text 2 (Sublime for short) + GoSubli
 	Figure 1.6 Sublime project management
 	
 - Syntax highlight
-- Free trial forever with no functional limitations. You may be prompted once in a while to remind you to purchase a licnese, but you can simply ignore it if you wish. Of course, if you do find that it enhances your productivity and you really enjoy using it, please purchase a copy of it and support its continued development!
+- Free trial forever with no functional limitations. You may be prompted once in a while to remind you to purchase a license, but you can simply ignore it if you wish. Of course, if you do find that it enhances your productivity and you really enjoy using it, please purchase a copy of it and support its continued development!
 
 First, download the version of [Sublime](http://www.sublimetext.com/) suitable for your operating system.
 
-1. Press `Ctrl+`, open the command tool and input the following commands.
+1. Press ``Ctrl+` ``, open the command tool and input the following commands.
 
 		import urllib2,os; pf='Package Control.sublime-package'; ipp=sublime.installed_packages_path(); os.makedirs(ipp) if not os.path.exists(ipp) else None; urllib2.install_opener(urllib2.build_opener(urllib2.ProxyHandler())); open(os.path.join(ipp,pf),'wb').write(urllib2.urlopen('http://sublime.wbond.net/'+pf.replace(' ','%20')).read()); print 'Please restart Sublime Text to finish installation'
 		

en/02.2.md

@@ -250,7 +250,7 @@ The reason that Go is concise because it has some default behaviors.
 	
 in `[n]type`, `n` is the length of the array, `type` is the type of its elements. Like other languages, we use `[]` to get or set element values within arrays.
 
-	var arr [10]int  // an array of type int
+	var arr [10]int  // an array of type [10]int
 	arr[0] = 42      // array is 0-based
 	arr[1] = 13      // assign value to element
 	fmt.Printf("The first element is %d\n", arr[0])  // get element value, it returns 42

en/02.3.md

@@ -15,7 +15,7 @@ The greatest invention in programming is flow control. Because of them, you are
 	if x > 10 {
     	fmt.Println("x is greater than 10")
 	} else {
-    	fmt.Println("x is less than 10")
+    	fmt.Println("x is less than or equal to 10")
 	} 
 	
 The most useful thing concerning `if` in Go is that it can have one initialization statement before the conditional statement. The scope of the variables defined in this initialization statement are only available inside the block of the defining `if`.

en/02.6.md

@@ -181,7 +181,7 @@ An empty interface is an interface that doesn't contain any methods, so all type
 	a = i
 	a = s
 
-If a function uses an empty interface as its argument type, it can accept any type; if a function uses empty as its return value type, it can return any type.
+If a function uses an empty interface as its argument type, it can accept any type; if a function uses empty interface as its return value type, it can return any type.
 
 ### Method arguments of an interface
 

en/04.2.md

@@ -12,7 +12,7 @@ Sometimes we require that users input some fields but they don't, for example in
     	// code for empty field
 	}
 
-`r.Form` treats different form element types differently when they are blank. For empty textboxes, text areas and file uploads, it returns an empty string; for radio buttons and check boxes, it doesn't even create the corresponding items. Instead, you will get errors if you try to access it. Therefore, it's safer to use `r.Form.Get()` to get filed values since it will always return empty if the value does not exist. On the other hand, `r.Form.Get()` can only get one field value at a time, so you need to use `r.Form` to get the map of values.
+`r.Form` treats different form element types differently when they are blank. For empty textboxes, text areas and file uploads, it returns an empty string; for radio buttons and check boxes, it doesn't even create the corresponding items. Instead, you will get errors if you try to access it. Therefore, it's safer to use `r.Form.Get()` to get field values since it will always return empty if the value does not exist. On the other hand, `r.Form.Get()` can only get one field value at a time, so you need to use `r.Form` to get the map of values.
 
 ## Numbers