Update desc wording

FlowPlugins/CommunityFlowPlugins/file/setOriginalFile/1.0.0/index.js

@@ -4,7 +4,8 @@ exports.plugin = exports.details = void 0;
 /* eslint no-plusplus: ["error", { "allowForLoopAfterthoughts": true }] */
 var details = function () { return ({
     name: 'Set Original File',
-    description: 'Set the working file to the original file',
+    description: 'Set the working file to the original file path at the very start of the flow. '
+        + 'The original file won\'t be affected by subsequent plugins (E.g. Replace Original File).',
     style: {
         borderColor: 'green',
     },