Fix typo: "Hardware accelration" -> "Hardware acceleration".

Change-Id: I62c6d7c9c5f9cf68edc6ccd7fa5cc075606694e5
diff --git a/docs/custom_vm.md b/docs/custom_vm.md
index 7597131..2815bbf 100644
--- a/docs/custom_vm.md
+++ b/docs/custom_vm.md
@@ -44,6 +44,6 @@
 `weston` with VNC backend might be another option, but it isn't available in
 Debian package repository for bookworm.
 
-## Hardware accelration
+## Hardware acceleration
 If the file `/sdcard/linux/virglrenderer` exists on the device, it enables VirGL for VM.
 This requires enabling ANGLE for the Terminal app. (https://chromium.googlesource.com/angle/angle.git/+/HEAD/doc/DevSetupAndroid.md)