Documentation: note COMPATIBILITY of -Tascii `?' printing in mandoc.1

and remove some long-fixed notes in sthe same section.  Also, add an
`Lb' for the mandoc library to mandoc.3 (noted by Sascha Wildner).

1 files changed, 2 insertions, 0 deletions

diff --git a/mandoc.3 b/mandoc.3
index 3611bfb4..457e5635 100644
--- a/mandoc.3
+++ b/mandoc.3
@@ -41,6 +41,8 @@
 .Nm mparse_strerror ,
 .Nm mparse_strlevel
 .Nd mandoc macro compiler library
+.Sh LIBRARY
+.Lb mandoc
 .Sh SYNOPSIS
 .In man.h
 .In mdoc.h