Clarify the implicit ending of formatting codes

Author: Tadeusz Sośnierz

S26-documentation.pod

@@ -1745,7 +1745,8 @@ or delimiters with more consecutive angles than your text contains:
 
 A formatting code ends at the matching closing angle bracket(s), or at
 the end of the enclosing block or formatting code in which the opening
-angle bracket was specified, whichever comes first. Pod parsers are
+angle bracket was specified, whichever comes first (this includes paragraph
+and abbreviated blocks, ending with blank a line). Pod parsers are
 required to issue a warning whenever a formatting code is terminated by
 the end of an outer block rather than by its own delimiter (unless the
 user explicitly disables the warning).