fix typo

Author: rogerkuou

paper/paper.md

@@ -81,6 +81,6 @@ We would also like to thank Dr. Francesco Nattino and Dr. Meiert Willem Grootes
 
 In writing the software documentation and the JOSS paper, GPT-5 was used for language improvements for grammar correction and style edits.
 
-Additionally, various language models are used via [GitHub Copilot](https://copilot.github.com/) in Pull Requests reviews, for pre-filtering obvious issues such as typos, small logical errors, and for suggesting code improvements. All suggestions from AI were reviewed and verified by the authors before merging into the codebase. The correctness of the code is ensured by the unit tests.
+Additionally, various language models were used via [GitHub Copilot](https://copilot.github.com/) in Pull Requests reviews, for pre-filtering obvious issues such as typos, small logical errors, and for suggesting code improvements. All suggestions from AI were reviewed and verified by the authors before merging into the codebase. The correctness of the code was ensured by the unit tests.
 
 ## References