Generates the first index.html without blog directory

[kiarafbickers]

When you modify the root _config.yml file to include:

index_generator:
  path: ''
  per_page: 10
  order_by: -date

It creates blog pages without the first numbered index.

INFO  Generated: index.html
INFO  Generated: blog/2/index.html
INFO  Generated: blog/3/index.html
INFO  Generated: blog/4/index.html
INFO  Generated: blog/5/index.html

The first blog page should be blog/1/index.html instead of index.html.

[stevenjoezhang]

See

hexo-pagination/lib/pagination.js

Line 27 in b55476a

const url = i > 1 ? base + format(_format, i) : base;