I'm a beginner to Tex. I was using an Overleaf template to create a CV. [Link: https://www.overleaf.com/project/5cdbf1b52aab4345446ebf8c ]. I want to know how I can increase the left column width so that I can add new section named ACHIEVEMENTS. Currently, the left column is full I think. Because I'm getting the warning
Overfull \hbox (1.75659pt too wide) in paragraph at lines. Is it possible that I can get a permanent solution by editing the
res.cls file? If so, can anyone show the part of the code I need to edit?
I've also attached a screenshot. I want some spacing between the section and points like in the normal overleaf template.