docs(funding): update funding information (visjs#189)

.github/FUNDING.yml

@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: # Replace with a single Patreon username
+open_collective: visjs
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL

package.json

@@ -93,6 +93,10 @@
     "type": "opencollective",
     "url": "https://opencollective.com/visjs"
   },
+  "funding": {
+    "type": "opencollective",
+    "url": "https://opencollective.com/visjs"
+  },
   "contributors": [
     "jos <[email protected]>",
     "Alex de Mulder <[email protected]>",