Add a tip of how to fix overlay border line exceeded the window width.
treea891a94a5a02914e87201df48c700c0e85c98ac9
-rw-r--r-- 36 .gitignore
-rw-r--r-- 35141 LICENSE
-rw-r--r-- 3063 README.md
-rw-r--r-- 4439 eldoc-overlay.el
-rw-r--r-- 183540 screenshot.png