Updated smnp.text (markdown)

smnp.text.md

@@ -12,8 +12,22 @@ Checks if length of string is greater than 0.
 Tries to convert `string` to `int`. If the text actually represents an `int`, it returns it as of `int` type. It returns itself (as a `string`) otherwise.
 
 ## `string.substring(startIndex: int, endIndex: int)`
+Returns a substring.
+
+### Example
+```
+println("Hello world".substring(1, 5));    # ello
+``` 
 
 ## `string.split(delimiter: string)`
+Splits the string with given delimiter to list of strings and returns it.
+
+### Example
+```
+str = "this:is:some:text";
+
+println(str.split(":"));    # [this, is, some, text]
+```
 
 ## `string.toFloat()`
 Tries to convert `string` to `float`. If the text actually represents a `float`, it returns it as of `float` type. It returns itself (as a `string`) otherwise.