add forum URL

diff --git a/personal/_posts/2020-04-04-layout-debugging.md b/personal/_posts/2020-04-04-layout-debugging.md
index f9771e0a7d805e4e28e6b2ac2ece511713023a5b..181b11bdeaad2a36d257e5f9d25aefecb5f99845 100644 (file)
--- a/personal/_posts/2020-04-04-layout-debugging.md
+++ b/personal/_posts/2020-04-04-layout-debugging.md
@@ -1,6 +1,7 @@
 ---
 title: "Debugging rustc type layouts"
 categories: rust
+forum: https://internals.rust-lang.org/t/psa-debugging-rustc-type-layouts/12082
 ---
 
 This post is a "public service announcement" for people working on the guts of rustc.