chore: add founding link

.github/FUNDING.yml

@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: null
+patreon: null # Replace with a single Patreon username
+open_collective: stylus
+ko_fi: null # Replace with a single Ko-fi username
+tidelift: null # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: null # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: null # Replace with a single Liberapay username
+issuehunt: null # Replace with a single IssueHunt username
+otechie: null # Replace with a single Otechie username
+custom: null # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

package.json

@@ -47,5 +47,6 @@
     "example": "examples",
     "test": "test"
   },
-  "license": "MIT"
+  "license": "MIT",
+  "funding": "https://opencollective.com/stylus"
 }