Chrome console alert and prompt functions explained.

Author: russom

Sprint-1/4-stretch-explore/chrome.md

@@ -9,10 +9,16 @@ Let's try an example.
 
 In the Chrome console,
 invoke the function `alert` with an input string of `"Hello world!"`;
-
 What effect does calling the `alert` function have?
 
+- A window pops up with `"Hello world!"` message
+
 Now try invoking the function `prompt` with a string input of `"What is your name?"` - store the return value of your call to `prompt` in an variable called `myName`.
 
 What effect does calling the `prompt` function have?
+
+- a new window popup saying what is your name with a text input field for user to type.
+
 What is the return value of `prompt`?
+
+- A text string that input by the user is returned.