Welcome to the Make community!
To do this, you can use the built-in function replace — “Replaces the search string with the new string.”
{{ replace (text; search string; replacement string) }}
For more information, the function’s documentation can be found in the Help Centre. You should also complete the tutorials in the Make Academy.
For more information, also see these similar questions by other community members, which may answer your question in further detail:
Do try to search this forum for existing answers, and also use the documentation in the Help Centre. You are likely to get to a solution faster this way and also help keep the forum organised. Thanks for your cooperation!
Hope this helps! Let me know if there are any further questions or issues. P.S.: investing some effort into the tutorials in the Make Academy will save you lots of time and frustration using Make!
— @samliew