Updated blog README

i2p2www/blog/README

@@ -35,6 +35,14 @@ How to use the blog
 3. Write the blog post in reStructuredText format, taking note of the custom
    format notes above.
 
+Writing draft posts
+-------------------
+
+To write a draft post, create the file with the suffix '.rst.draft'. Post files
+with this suffix will be visible at their post URL, but will not be shown in
+the blog index. To publish the draft post, change the filename to remove the
+'.draft' suffix.
+
 How to make a release notice
 ----------------------------