Typo in README.md

The README.md file for this plugin says:

"It is conceptually similar to the replace tool in core, but way more powerful as it can search and replace strings in tables and columns of the Moodle database, as well as inside files **withing** the File API, including files inside zip files such as H5P."

"withing" is not an english word - I presume that it is a typo.