document proper imports, fixes #8164 (#10698)

lib/packages/docutils/highlite.nim

@@ -10,6 +10,8 @@
 ## Source highlighter for programming or markup languages.
 ## Currently only few languages are supported, other languages may be added.
 ## The interface supports one language nested in another.
+##
+## **Note:** Import ``packages/docutils/highlite`` to use this module
 
 import
   strutils

lib/packages/docutils/rst.nim

@@ -10,6 +10,8 @@
 ## This module implements a `reStructuredText`:idx: parser. A large
 ## subset is implemented. Some features of the `markdown`:idx: wiki syntax are
 ## also supported.
+##
+## **Note:** Import ``packages/docutils/rst`` to use this module
 
 import
   os, strutils, rstast

lib/packages/docutils/rstast.nim

@@ -8,6 +8,8 @@
 #
 
 ## This module implements an AST for the `reStructuredText`:idx: parser.
+##
+## **Note:** Import ``packages/docutils/rstast`` to use this module
 
 import strutils, json
 

lib/packages/docutils/rstgen.nim

@@ -22,6 +22,8 @@
 ## other lower level methods to finally build complete documents. This requires
 ## many options and tweaking, but you are not limited to snippets and can
 ## generate `LaTeX documents <https://en.wikipedia.org/wiki/LaTeX>`_ too.
+##
+## **Note:** Import ``packages/docutils/rstgen`` to use this module
 
 import strutils, os, hashes, strtabs, rstast, rst, highlite, tables, sequtils,
   algorithm, parseutils