fix(guide): simplify directory structure

guide/english/csharp/split/index.md

@@ -0,0 +1,32 @@
+---
+title: Split
+---
+
+# Split Method
+
+The `String.Split` method parses a string: As input, it takes a character indicating the separator, and generates an array of sub strings.
+
+## Example
+```csharp
+string myText = "I like pizza";
+
+// Split the string by ' '(space) character.
+string[] splitResult = myText.Split(' ');
+
+// The array splitResult, now contains three substrings.
+
+// Now print the array of substrings
+foreach(string x in splitResult)
+{
+    // Write On Console
+    Console.WriteLine(x);
+}
+
+```
+
+## Output:
+```
+> I
+> like
+> pizza
+```