update brldemo to refresh braille for 5 sec

play zone/writeBrl.py

@@ -1,12 +1,16 @@
 #!/bin/python
 
 import brlapi
+import time
 
 brl = brlapi.Connection()
 print(brl.displaySize)
 print(brl.driverName)
+
+t = time.time()
+while(time.time() - t <= 5):
     try:
-    brl.writeText('test')
+        brl.writeText('this is a 5 second test')
     except Exception as e:
         print(e)