docs: fix typo

Author: Akryum

Diff for: packages/docs/src/guide/component.md

@@ -272,7 +272,7 @@ Nesting poppers inside other popper will automatically prevent the parents from
 
 <SubMenuExample />
 
-Floating Vue will automatically fix the [diagonal submenu problem](https://www.google.com/search?q=submenu%20diagonal%20problem) for you be detecting if the mouse is aiming at the popper content from the reference:
+Floating Vue will automatically fix the [diagonal submenu problem](https://www.google.com/search?q=submenu%20diagonal%20problem) for you by detecting if the mouse is aiming at the popper content from the reference:
 
 <div class="mx-auto" style="max-width:400px">
   <img alt="popper aim debug example" src="./popper-aim.png" class="border border-gray-200 rounded">