To allow other plugins to alter the html this plugin executes the following events:
Async:
html-webpack-plugin-before-html-generation
html-webpack-plugin-before-html-processing
html-webpack-plugin-alter-asset-tags
html-webpack-plugin-after-html-processing
html-webpack-plugin-after-emit
Sync:
html-webpack-plugin-alter-chunks

这些事件是何时如何被运行的？大神指条明路呗？