Add more context in the explanation

Author: savetheclocktower

lib/worker-manager.js

@@ -11,6 +11,11 @@ import {getPackageRoot, autobind} from './helpers';
 // ready, and `GitShellOutStrategy` will use its fallback approach of spawning
 // `git` processes more directly via `dugite` (which works fine). This allows
 // us to bail without even trying to start another renderer process.
+//
+// NOTE: For the reasons explained in
+// https://github.com/pulsar-edit/github/pull/45, `WorkerManager` is now
+// permanently disabled. This automatically triggers the fallback strategy
+// described above and is a prelude to the removal of `WorkerManager` entirely.
 const ENABLED = false;
 
 export default class WorkerManager {