README.md: Mention generate-lockfile

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/README.md b/README.md
index aa6533135e3808738dc7b4589b72cfc0476f6f7a..43bc40036d4c16277ade8d81ee7d9c20e580211f 100644 (file)
--- a/README.md
+++ b/README.md
@@ -180,6 +180,10 @@ If you disagree with my opinion, write `misc.online=true` in your
 nailing-cargo configuration.  `misc.online=false`, and command line
 options, are also available, for overriding.
 
+If you agree, then you may wish to use `nailing-cargo
+generate-lockfile`, which can update (even an existing) `Cargo.lock`
+without going online, instead of `update`.
+
 Invocation and command-line option reference
 ============================================