Add comment about Module path

lib/common/reset-search-paths.js

@@ -36,6 +36,8 @@ Module._nodeModulePaths = function (from) {
   return paths
 }
 
+// Patch Module._resolveFilename to always require the Electron API when
+// require('electron') is done.
 const electronPath = path.join(__dirname, '..', process.type, 'api', 'exports', 'electron.js')
 const originalResolveFilename = Module._resolveFilename
 Module._resolveFilename = function (request, parent, isMain) {