Update README.md (#96)

Scripted pipeline can accept multiple cron expressions if described as declarative pipeline. Using current solution only the last cron entry is being saved

Author: MesterJoda

README.md

@@ -92,8 +92,10 @@ properties([
     string(name: 'GREETING', defaultValue: 'Hello', description: 'How shall we greet?')
   ]),
   pipelineTriggers([
-    parameterizedCron('*/2 * * * * %GREETING=Hola;PLANET=Pluto'),
-    parameterizedCron('*/3 * * * * %PLANET=Mars')
+    parameterizedCron('''
+        */2 * * * * %GREETING=Hola;PLANET=Pluto
+        */3 * * * * %PLANET=Mars
+    ''')
   ])
 ])
 ```