Removed rubbish at start of file
Initial Headings for lesson 3
updated headers
Basic reference_implementation of the adventure game.
Removed creditation, no point that being there really...
Added some more locations
Added some textual informaton for some headers.
Updated the resources main page
Lesson 3: Ashok's sections.

 * What is a Text-Based Adventure Game?
 * Structuring the Game
 * A Starting Point
Merge pull request #5 from asQuirreL/dev

Lesson 3: Ashok's sections.
Lesson 3: Fixing List Formatting.
Lesson 3: Fixing the command headings so they actually look like headings.
Lesson 3: Typo fix `describe(...):` -> `def describe(...):`
Lesson 3: Capitalisation in Hint box.
Added dict & functions for lesson 3
Word-wrapping fixed
Indentation fixed for code
Lesson 3: (James' sections) Fixing typos and trailing whitespace.
Lesson 3: (James' sections) Spacing out paragraphs, slight rewording

Changing references to "arrays" to "lists" as that is what people are
familiar with in this course.
Lesson 3: (James' section) Further example and more spacing out.

Added examples to show how to use `not in` as well as `in`. And
illustrated the multiple values, same key and same key, multiple values
properties more clearly.