add changelog note on hvdc line psse export feature

ccoffrin · ccoffrin · commit 84252ad8b6a2 · 2021-10-25T12:50:27.000-06:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -2,6 +2,7 @@ PowerModels.jl Change Log
 =========================
 
 ### Staged
+- Added support for two-terminal HVDC lines to PSSE export (#754)
 - Improved formulation of `relaxation_sin_on_off` constraint (#786)
 
 ### v0.18.3
