fix typo

Author: mozzy11

README.md

@@ -42,7 +42,7 @@ Configure the Following Global Properties Required By the Lab on Fhir Module
 * `labonfhir.orderTestUuids` ,Concept UUIDs to filter by for Test Orders that get sent to the LIS
 * `labonfhir.labUpdateTriggerObject` ,The OpenMRS object type that should trigger LIS synchronization - either Encounter or Order
 * `labonfhir.addObsAsTaskInput` ,Allows Adding Obs as Task Input- either true or false
-* `labonfhir.filterDemoData` , Allows filtering Demo Data generated by the Demo Data module - either tru or false
+* `labonfhir.filterDemoData` , Allows filtering Demo Data generated by the Demo Data module - either true or false
 watch the EMR-LIS Exhange [demo video](https://www.youtube.com/watch?v=LsHhDrrlvKw) using the Lab on FHIR module