doc: Refine README.links further

suggested by Chapman Flack <chap@anastigmatix.net>
2019-03-29 13:36:24 +01:00 · 2019-03-29 13:36:24 +01:00 · c0a2ff474a
parent 41b54ba78e
commit c0a2ff474a
1 changed files with 7 additions and 3 deletions
--- a/doc/src/sgml/README.links
+++ b/doc/src/sgml/README.links
@ -40,6 +40,10 @@ url=
 Guidelines
 ----------

-o  If you want to supply text, use <link>, else <xref>
-o  Specific nouns like GUC variables, SQL commands, and contrib modules
-   usually have xreflabels
+- For an internal link, if you want to supply text, use <link>, else
+  <xref>.
+
+- Specific nouns like GUC variables, SQL commands, and contrib modules
+  usually have xreflabels.
+
+- For an external link, use <ulink>, with or without link text.