more man page tweaks
diff --git a/got/got.1 b/got/got.1
index 22c9a0e..8ae2d1a 100644
--- a/got/got.1
+++ b/got/got.1
@@ -37,9 +37,16 @@ repositories created by the popular Git version control system.
This repository format is described in
.Xr got-repository 5 .
.Pp
+.Nm
+is a
+.Dq distributed
+version control system because every copy of a repository is writeable.
+Modifications made to files can be synchronized between repositories
+automatically at any time.
+.Pp
Files managed by
.Nm
-can be checked out from the repository for modification.
+must be checked out from the repository for modification.
Checked out files are stored in a
.Em work tree
which is placed at an arbitrary directory in the filesystem hierarchy.