We now have a `CONTRIBUTING.md` page in `core`, so we need to explain

7.  `instructors.md`: the instructor's guide for the lesson. See

    "Instructor's Guide" below.

Note that the lesson's title is repeated in several files.  We could

8.  `CONTRIBUTING.md`: instructions for people who want to contribute.

    This file should be edited to replace references to `lesson-template`

    with references to your lesson's repository.

Note: the lesson's title is repeated in several files.  We could

put this in the Makefile, and insert it into pages when compiling, but

then authors would have to edit the Makefile (which we want to avoid).

We could also put it in some sort of configuration file, but again,

we're trying to avoid those.

We could also put it in some sort of configuration file, but they're

not a standard part of Pandoc, so we're avoiding them as well.

## Home Page

    *   Second point of general discussion.

Note: the discussion page is not meant to be more lesson material, so

it should not contain challenges and the like.  Instead, it should

give pointers to other lessons and tools that learners might find

useful, etc.

## Instructor's Guide

Learners may go through lessons outside of class, so it seems best to

    $ git remote add origin https://github.com/mcurie/data-cleanup

    ~~~

5.  Create and edit files (explained below).

5.  Create and edit files as explained in

    [Lesson Layout](LAYOUT.md),

    [Background and Design](DESIGN.md),

    and the [FAQ](FAQ.md).

6.  Build the HTML pages for your lesson: