Fix fhir-examples link

USERGUIDE.md

@@ -7,7 +7,7 @@ FhirProto is Google’s implementation of the [FHIR Standard](http://hl7.org/fhi
 
 # Using this Guide
 
-This guide describes how to use the FhirProto github repository at [https://github.com/google/fhir/](https://github.com/google/fhir/).  However, unless you want to actively tweak the implementation of FhirProto, you don’t need to clone this repository, and instead should include it as an external dependency.  To demonstrate how this works, this guide makes use of a separate repository, [https://github.com/google/fhir-example](https://github.com/google/fhir-example).  This repo contains a script for using [Synthea](https://github.com/synthetichealth/synthea) to create a synthetic FHIR JSON dataset, and then shows some examples of parsing, printing, validating, profiling and querying.  Some of these examples are left intentionally incomplete, to leave exercises to go along with this guide.
+This guide describes how to use the FhirProto github repository at [https://github.com/google/fhir/](https://github.com/google/fhir/).  However, unless you want to actively tweak the implementation of FhirProto, you don’t need to clone this repository, and instead should include it as an external dependency.  To demonstrate how this works, this guide makes use of a separate repository, [https://github.com/google/fhir-examples](https://github.com/google/fhir-example).  This repo contains a script for using [Synthea](https://github.com/synthetichealth/synthea) to create a synthetic FHIR JSON dataset, and then shows some examples of parsing, printing, validating, profiling and querying.  Some of these examples are left intentionally incomplete, to leave exercises to go along with this guide.
 
 This guide represents a reference with in-depth descriptions of different concepts, but if you just want to jump in and try working with FHIR, head over to the [Examples](https://github.com/google/fhir-examples/blob/master/EXAMPLES.md) document.