Requiring the README to be written in English

Every day, we review a significant number of plugins, and since last year, we have been receiving many more requests each week. In addition, our team is made up of a diverse group with different languages and alphabets.

For this reason, our team uses English as the official language within the community and for communication with authors during the review process.

As part of the plugin review, we also check the readme.txt file, which contains all the important information about the plugin, such as its name, version, description, authors, and other relevant details. This file is essential for the management