docs: build: Add potrace to build-deps

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

diff --git a/docs/build.rst b/docs/build.rst
index 46fd0e5d8e02dcc13c84b9e8f2b69ee2bd9c0b81..d4e60ad3313bb1c7c7f300fb5a56783b0e209063 100644 (file)
--- a/docs/build.rst
+++ b/docs/build.rst
@@ -24,6 +24,7 @@ Setup
                       pkg-config libssl-dev             \
                       node-typescript inkscape bubblewrap \
                       netpbm imagemagick libtoml-parser-perl \
+                      potrace                                \
                       python3-sphinx python3-recommonmark