fix grammar

Author: mcpcpc

README.md

@@ -152,7 +152,7 @@ Applying a new color scheme is easy! One of the quickest ways is to use an appli
 ## FAQ
 
 *   **KISS** is an acronym for [Keep It Simple Stupid](https://en.wikipedia.org/wiki/KISS_principle), which is a design principle noted by the U.S. Navy in 1960s. The KISS principle states that most systems work best if they are kept simple rather than made complicated; therefore, simplicity should be a key goal in design, and unnecessary complexity should be avoided.
-*   **POSIX** is an acronym for [Portable Operating System Interface](https://opensource.com/article/19/7/what-posix-richard-stallman-explains), which is a family of standards specified by the IEEE Computer Society for maintaining compatibility between operating systems. The *C99* Standard is typically preferred (as opposed to *C89* or *C11*) as this is currently the only one specified by [POSIX](https://pubs.opengroup.org/onlinepubs/9699919799/utilities/c99.html).
+*   **POSIX** is an acronym for [Portable Operating System Interface](https://opensource.com/article/19/7/what-posix-richard-stallman-explains), which is a family of standards specified by the IEEE Computer Society for maintaining compatibility between operating systems. The *C99* Standard is preferred (as opposed to *C89* or *C11*) since this currently the only one specified by [POSIX](https://pubs.opengroup.org/onlinepubs/9699919799/utilities/c99.html).
 
 ## Known Bugs