Generate Rules.md and md###.md files from metadata, improve Parameters documentation by referencing schema.

doc-build/md006.md

@@ -0,0 +1,36 @@
+This rule is triggered when top-level lists don't start at the beginning of a
+line:
+
+```markdown
+Some text
+
+  * List item
+  * List item
+```
+
+To fix, ensure that top-level list items are not indented:
+
+```markdown
+Some test
+
+* List item
+* List item
+```
+
+Note: This rule is triggered for the following scenario because the unordered
+sublist is not recognized as such by the parser. Not being nested 3 characters
+as required by the outer ordered list, it creates a top-level unordered list
+instead.
+
+```markdown
+1. List item
+  - List item
+  - List item
+1. List item
+```
+
+Rationale: Starting lists at the beginning of the line means that nested list
+items can all be indented by the same amount when an editor's indent function
+or the tab key is used to indent. Starting a list 1 space in means that the
+indent of the first nested list is less than the indent of the second level (3
+characters if you use 4 space tabs, or 1 character if you use 2 space tabs).