--- a/ch01.roff	Wed Mar 07 11:46:18 2012 +0100
+++ b/ch01.roff	Wed Mar 07 14:33:03 2012 +0100
@@ -21,7 +21,11 @@
 and it is a specific mail storage format, like Unix has its file system
 formats.
 
-.H1 "History of MH
+.H2 "Concepts of MH" no
+.P
+FIXME
+
+.H2 "History of MH" no
 .P
 MH is an electronic mail system, originating in the RAND Corporation.
 In 1977, Norman Shapiro and Stockton Gaines had proposed the design
@@ -46,7 +50,7 @@
 .H1 "How the Fun Began
 .P
 I have discovered nmh in XXX. I used to use mutt, like many
-command-line-attracted Unix users. Nmh had convinced me conceptually
+command line-attracted Unix users. Nmh had convinced me conceptually
 at once. Unfortunately, setting it up to a convenient state became a
 tendious task. Learning its different model of email handling had,
 in contrast, been relatively easy. Learning to use MH if you are used