v9.3.2-canary.0

Patches

• Update CLI custom config documentation link: #11152
• Add error when attempting to export GSSP page: #11154
• Update blog-starter example: #11071
• Add CSS file to build output: #11145
• Update <dir> reference in help text: 5274535
• Clean up examples directory: #11169
• Remove react-ssr-prepass alias as it's not longer needed: #11170
• Upgrade @ampproject/toolbox-optimizer to 2.0.1: #11168
• Add section on reading files: #11084
• [Examples] fix remark link in blog-starter's README: #11177

Credits

Huge thanks to @chibicode, @ijjk, @timneutkens, @sebastianbenz, and @zhe for helping!