add forum link

diff --git a/ralf/_posts/2019-05-21-stacked-borrows-2.1.md b/ralf/_posts/2019-05-21-stacked-borrows-2.1.md
index 3e4cbc13c14b80585047c0bba6d5b2d9556a280c..13147e356c081cceec801038ba09064c2adcc6fe 100644 (file)
--- a/ralf/_posts/2019-05-21-stacked-borrows-2.1.md
+++ b/ralf/_posts/2019-05-21-stacked-borrows-2.1.md
@@ -1,6 +1,7 @@
 ---
 title: "Putting the stack back into Stacked Borrows"
 categories: rust research
+forum: https://internals.rust-lang.org/t/stacked-borrows-2/9951/8
 ---
 
 Less than a month ago, [I announced Stacked Borrows 2]({% post_url 2019-04-30-stacked-borrows-2 %}).