README.md: Config, start having section names in headings

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

diff --git a/README.md b/README.md
index d730874503ca1305fbd80e13a3fe391deebb5dfa..1550719719b68ff927c7e6c02ca08a5df522531f 100644 (file)
--- a/README.md
+++ b/README.md
@@ -260,8 +260,8 @@ files.
 Note that unlike everything else, `packages` and `subdirs` are read
 only from `Cargo.nail` (see "Limitations and bugs", below).
 
-Alternative `Cargo.lock` filename
----------------------------------
+`[alt_cargolock]`: Alternative `Cargo.lock` filename
+----------------------------------------------------
 
 To control use of alternative `Cargo.lock` filename, use the section
 `[alt_cargolock]`.  Settings here: