Merge pull request #1665 from Syndace/patch-1

Don't .gitignore ihp-sg13g2

Author: maliberty

.gitignore

@@ -58,6 +58,7 @@ flow/*.opennet
 # Platforms
 flow/platforms/*
 !flow/platforms/asap7
+!flow/platforms/ihp-sg13g2
 !flow/platforms/nangate45
 !flow/platforms/sky130hd
 !flow/platforms/sky130hs