Replace README.txt with README.md

Reviewed MR!19, the patch is not cleanly applied:
Please follow the instruction mentioned below for readme.md file template: https://www.drupal.org/docs/develop/managing-a-drupalorg-theme-module-or... →

Hi nitin_lama

I reviewed your MR!19 and requirements sections should be change to This theme requires no modules outside of Drupal core. and the installation section also is not following the README.md template. →

Thank you

Hi nitin_lama

I reviewed your changes in MR!19 and the installation section is not fixed it should be

Install as you would normally install a contributed Drupal theme. For further
information, see [Installing Drupal Themes](https://www.drupal.org/docs/extending-drupal/themes/installing-themes)

Thank you

ravi kant → made their first commit to this issue’s fork.

@kenyoOwen
I have updated readme file as suggestions.

Reviewed MR!19, the few changes are required in the patch.

1. Project name is incorrect, It should be "Food Blog".
2. Configuration is not mentioned from "##Table of contents".

@Nupur Badola
I have fixed both issues.

Mentioned issue in comment #16 is fixed.

Reviewed MR!19, the file is updated as per the readme.md file template.
Hence marking it to RTBC.