Add CommaFeed subscription configuration (#1161)

Author: ecstrema

src/lib/quick-subscriptions.ts

@@ -123,6 +123,15 @@ export const quickSubscriptions: ({
     getSubscribePath: (data) =>
       `/index.html#/check/add?title=${encodeURIComponent(data.title)}&url=${data.encodedUrl}&type=rss&icon=${encodeURIComponent(data.image)}`,
   },
+  {
+    name: "CommaFeed",
+    projectUrl: "https://commafeed.com",
+    key: "commafeed",
+    subscribeDomain: "https://commafeed.com",
+    themeColor: "#ffa94d",
+    getSubscribePath: (data) =>
+      `/rest/feed/subscribe?url=${data.encodedUrl}`,
+  },
   {
     name: "localReader",
     key: "local",