add line at eof and adding icon

code-scanning/properties/credo.properties.json

@@ -2,5 +2,6 @@
     "name": "Credo Scan",
     "creator": "Credo",
     "description": "Credo is a static code analysis tool for the Elixir language with a focus on teaching and code consistency.",
+    "iconName": "code",
     "categories": ["Code Scanning", "Elixir"]
-}
+}

icons/code.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="16" height="16"><path d="m11.28 3.22 4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734L13.94 8l-3.72-3.72a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215Zm-6.56 0a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042L2.06 8l3.72 3.72a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L.47 8.53a.75.75 0 0 1 0-1.06Z"></path></svg>