updated CI

Author: Brad Carman

.github/workflows/CI.yml

@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.9'
+          - '1.8'
         os:
           - ubuntu-latest
         arch:

README.md

@@ -99,4 +99,7 @@ ModelingToolkitDesigner.jl colors the connections based on `ModelingToolkitDesig
 
 - Finish adding icons for the ModelingToolkitStandardLibrary.jl
 - Finish documentation
-- Support more complex connection paths with bends etc.
+- Support more complex connection paths with bends etc.
+
+# [compat]
+ModelingToolkit = "8.50" > needed for Domain feature