feat: added readme toc
MODIFY
templates/README.md.ejs
templates/README.md.ejs
[![Downloads/week](https://img.shields.io/npm/dw/<%= pjson.name %>.svg)](https://npmjs.org/package/<%= pjson.name %>)
[![License](https://img.shields.io/npm/l/<%= pjson.name %>.svg)](https://github.com/<%= repository %>/blob/master/package.json)
+<!-- toc -->
<!-- install -->
<!-- usage -->
<!-- commands -->

feat: added readme toc