The link to GROWI BLOG is broken

## Description
The link to `GROWI BLOG` in the homepage throws `Not Found`.

## Expected behaviour
We should see a blog like [this](https://weseek.co.jp/tech/category/growi/).

## Actual behaviour
We get `Not Found`.
https://github.com/weseek/growi-org/blob/002b744f8759bab80b7aeb2edb0addccd6fda40e/docs/.vuepress/theme/components/Home.vue#L157-L163