Update loc count in readme
# wlroots
Pluggable, composable, unopinionated modules for building a [Wayland]
-compositor; or about 50,000 lines of code you were going to write anyway.
+compositor; or about 60,000 lines of code you were going to write anyway.
- wlroots provides backends that abstract the underlying display and input
hardware, including KMS/DRM, libinput, Wayland, X11, and headless backends,
