doc: add lei_design_notes.txt and lei-store-format(5)

lei itself is a somewhat weird design, but lei/store is
a fairly normal hybrid of extindex with v2-style storage.

1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile.PL b/Makefile.PL
index 129b082d..85b18e7d 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -50,7 +50,7 @@ $v->{-m1} = [ map {
         lei-tag lei-p2q lei-q)];
 $v->{-m5} = [ qw(public-inbox-config public-inbox-v1-format
                 public-inbox-v2-format public-inbox-extindex-format
-                lei-mail-formats
+                lei-mail-formats lei-store-format
                 ) ];
 $v->{-m7} = [ qw(lei-overview public-inbox-overview public-inbox-tuning
                 public-inbox-glossary) ];