diff --git a/asciidoc-reference-cheat-sheet.adoc b/asciidoc-reference-cheat-sheet.adoc
index 001a726..a1e93df 100644
--- a/asciidoc-reference-cheat-sheet.adoc
+++ b/asciidoc-reference-cheat-sheet.adoc
@@ -16,7 +16,10 @@ Author: Yuri Slobodyanyuk, admin@yurisk.info
 |Block types
 a| Document ::= (Header?, Preamble?, Section*) +
    Header ::= (Title, (AuthorInfo, RevisionInfo?)?) +
-
+   AuthorInfo ::= (FirstName, (MiddleName?, LastName?)?, EmailAddress?) +
+   RevisionInfo ::= (RevisionNumber?, RevisionDate, RevisionRemark?) +
+   Preamble ::= (SectionBody)
+   SectionBody ::= ((BlockTitle?, Block) \| BlockMAcro)\+ + 
 
 
 
diff --git a/asciidoc-reference-cheat-sheet.pdf b/asciidoc-reference-cheat-sheet.pdf
index 90958b6..8a05714 100644
Binary files a/asciidoc-reference-cheat-sheet.pdf and b/asciidoc-reference-cheat-sheet.pdf differ