Update prerequisites.md

Author: yeikel

development/building/prerequisites.md

@@ -111,7 +111,7 @@ sudo ln -sfn $(brew --prefix openjdk@21)/libexec/openjdk.jdk /Library/Java/JavaV
 
 ### Tips
 
-Consider allocating not less than 4GB of memory for your docker. Otherwise, some apps within a stack (e.g. `kafbat-ui.yaml`) might crash.
+Consider allocating at least 4GB of memory for your docker. Otherwise, some apps within a stack (e.g. `kafbat-ui.yaml`) might crash.
 
 To check how much memory is allocated to docker, use `docker info`.