Updated Install and configure Touchscreen Drivers (RPi) (markdown)

Install-and-configure-Touchscreen-Drivers-(RPi).md

@@ -70,6 +70,8 @@ Once calibrated, the touchscreen can be tested using:
 
     sudo TSLIB_FBDEVICE=/dev/fb1 TSLIB_TSDEVICE=/dev/input/event3 TSLIB_CALIBFILE=/etc/pointercal TSLIB_CONFFILE=/etc/ts.conf TSLIB_PLUGINDIR=/usr/local/lib/ts ts_test
 
+## Contract with RayLib
+
 Then, to create the input event stream that is going to be read by RayLib, run the following:
 
     sudo TSLIB_FBDEVICE=/dev/fb1 TSLIB_TSDEVICE=/dev/input/event3 TSLIB_CALIBFILE=/etc/pointercal TSLIB_CONFFILE=/etc/ts.conf TSLIB_PLUGINDIR=/usr/local/lib/ts ts_uinput -v -d