create redirect for partial path match

[shahbits22]

Description

I would like to create redirect for partial path match. For example - anything on /articles/* should be redirected to /docs/get-started/introduction if path doesn't exist.

Steps to reproduce

codebase - https://github.com/shahbits22/gatsby-starter-markdown
site - https://musing-mclean-ec664f.netlify.app/

Expected result

1. https://musing-mclean-ec664f.netlify.app/articles/abc should be redirected to https://musing-mclean-ec664f.netlify.app/articles/docs/get-started/introduction
2. https://musing-mclean-ec664f.netlify.app/articles/example exists so don't need a redirect on this path

Actual result

1. It is throwing 404 error
2. Working as expected

Environment

  System:
    OS: macOS Mojave 10.14.6
    CPU: (8) x64 Intel(R) Core(TM) i7-7920HQ CPU @ 3.10GHz
    Shell: 3.2.57 - /bin/bash
  Binaries:
    Node: 10.16.3 - ~/.nvm/versions/node/v10.16.3/bin/node
    npm: 6.4.1 - ~/.nvm/versions/node/v10.16.3/bin/npm
  Languages:
    Python: 2.7.16 - /usr/bin/python
  Browsers:
    Chrome: 86.0.4240.111
    Edge: 86.0.622.51
    Firefox: 82.0
    Safari: 14.0
  npmPackages:
    gatsby: ^2.15.15 => 2.15.15
    gatsby-cli: ^2.7.47 => 2.7.47
    gatsby-image: ^2.2.19 => 2.2.19
    gatsby-plugin-catch-links: ^2.3.15 => 2.3.15
    gatsby-plugin-manifest: ^2.2.16 => 2.2.16
    gatsby-plugin-meta-redirect: ^1.1.1 => 1.1.1
    gatsby-plugin-offline: ^2.2.10 => 2.2.10
    gatsby-plugin-react-helmet: ^3.1.7 => 3.1.7
    gatsby-plugin-remove-trailing-slashes: ^2.1.6 => 2.1.6
    gatsby-plugin-sharp: ^2.2.22 => 2.2.22
    gatsby-remark-autolink-headers: ^2.1.10 => 2.1.10
    gatsby-remark-images: ^3.1.22 => 3.1.22
    gatsby-remark-katex: ^3.1.8 => 3.1.8
    gatsby-source-filesystem: ^2.1.22 => 2.1.22
    gatsby-transformer-json: ^2.2.8 => 2.2.8
    gatsby-transformer-remark: ^2.6.22 => 2.6.22
    gatsby-transformer-sharp: ^2.2.14 => 2.2.14
  npmGlobalPackages:
    gatsby-cli: 2.12.99