fix: restore synthdid GitHub remote (not on CRAN, required by Imports)

Mike Nguyen · Mike Nguyen · commit 78fe40a12aa0 · 2026-03-18T14:48:30.000-07:00
diff --git a/DESCRIPTION b/DESCRIPTION
@@ -128,4 +128,5 @@ Imports:
     plm (>= 2.6.3),
     MASS
 Remotes:
+    synth-inference/synthdid
 VignetteBuilder: knitr
