Merge pull request data-lessons#18 from gvwilson/using-checklist-not-…

…getready

Switching from .getready to .checklist

_episodes/02-formatting.md

@@ -171,14 +171,17 @@ for the following special blockquotes:
 
 *   `.callout`: an aside or other comment.
 *   `.challenge`: an exercise.
-*   `.getready`: preparatory material.
+*   `.checklist`: checklists.
 *   `.keypoints`: key points of an episode.
 *   `.objectives`: episode objectives.
-*   `.prereq`: lesson prerequisites.
+*   `.prereq`: prerequisites.
 *   `.testimonial`: a laudatory quote from a user.
 
-Most authors will only use `.callout` and `.challenge`,
+Most authors will only use `.callout`, `.challenge`, and `.prereq`,
 as the others are automatically generated by the template.
+Note that `.prereq` is meant for describing things that learners should know before starting this lesson;
+setup instructions do not have a particular style,
+but are instead put on the `setup.md` page.
 
 [jekyll]: http://jekyllrb.com/
 [jekyll-collection]: https://jekyllrb.com/docs/collections/

assets/css/lesson.scss

@@ -71,7 +71,7 @@ $codeblock-padding: 5px !default;
 
 .callout{ @include bkSetup(#31708f, "\e146"); }
 .challenge{ @include bkSetup(#3c763d, "\270f"); }
-.getready{ @include bkSetup(#D4C30B, "\e067"); }
+.checklist{ @include bkSetup(#D4C30B, "\e067"); }
 .keypoints{ @include bkSetup(#0B80F0, "\e101"); }
 .objectives{ @include bkSetup(#D4C30B, "\e124"); }
 .prereq{ @include bkSetup(#D4C30B, "\e240"); }