write a bit of HACKING.md

1 files changed, 13 insertions, 1 deletions

diff --git a/HACKING.md b/HACKING.md
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--- a/HACKING.md
+++ b/HACKING.md
@@ -1 +1,13 @@
-TODO
+Here's the gist:
+
+ /src/ : website content
+ /bin/ : programs and such for generating the website from /src/
+ /out/ : where the generated output goes
+ Makefile : invoke /bin/ as appropriate
+ git-setup : set up git hooks (see below)
+
+The web server should serve the union of /src/ and /out/.
+
+On `master`, /out/ is ignored.  But `git-setup` will set up a git
+post-commit hook to generate /out/, and commit it to the
+`pre-generated` branch.