title: How to give more memory to IntelliJ Idea 9-11
body: <p>This concerns Intellij from 9 to 11.
  In the IDEA window On the bottom right corner I see the current memory usage, typically "224M of 254M" How do I give more memory to Idea so it may read like "224M of 512M" ?</p>
  
  <p>Thank you. </p>