README fixes

Author: sbSteveK

samples/Provisioning/Basic/README.md

@@ -67,7 +67,7 @@ Note that in a real application, you may want to avoid the use of wildcards in y
 There are many different ways to run the Fleet Provisioning sample because of how many different ways there are to setup a Fleet Provisioning template in AWS IoT Core. **The easiest and most common way is to run the sample with the following**:
 
 ``` sh
-mvn compile exec:java -pl samples/Provisioning/Basic -Dexec.mainClass=identity.BasicProvisioning -Dexec.args="--endpoint <endpoint> --cert <path to certificate> --key <path to private key> --template <provisioning template name>"
+mvn compile exec:java -pl samples/Provisioning/Basic -Dexec.mainClass=identity.BasicProvisioning -Dexec.args="--endpoint <endpoint> --cert <path to certificate> --key <path to private key> --template <provisioning template name> --params '{"SerialNumber":"<serial number>","DeviceLocation":"<locatiion>"}'"
 ```
 
 ### Fleet Provisioning Detailed Instructions

samples/ShadowSandbox/README.md

@@ -1,6 +1,6 @@
 # ShadowSandbox
 
-[**Return to main sample list**](../../README.md)
+[**Return to main sample list**](../README.md)
 
 This is an interactive sample that supports a set of commands that allow you to interact with "classic" (unnamed) shadows of the AWS IoT [Device Shadow](https://docs.aws.amazon.com/iot/latest/developerguide/iot-device-shadows.html) Service.