Fix changelog generation for releases

scripts/changelog.js

@@ -1,13 +1,31 @@
 const conventionalChangelog = require("conventional-changelog");
 
 module.exports.getChangelog = async () => {
-  let content;
+  let content = "";
 
-  const changelogStream = conventionalChangelog({});
+  const changelogStream = conventionalChangelog(
+    {
+      // `conventional-changelog` options
+      releaseCount: 2
+    },
+    {
+      // `context` goes here
+    },
+    {
+      // `git-raw-commits` options
+      merges: null
+    },
+    {
+      // `conventional-commits-parser` options
+    },
+    {
+      // `conventional-changelog-writer` options
+    }
+  );
 
   return new Promise(function(resolve, reject) {
-    changelogStream.on("data", (buffer) => content += buffer.toString());
+    changelogStream.on("data", buffer => (content += buffer.toString()));
     changelogStream.on("end", () => resolve(content));
-    changelogStream.on("error", (err) => reject(err));
+    changelogStream.on("error", err => reject(err));
   });
 };