Fix typos (#550)

* Fix typo

Activties -> Activities

* Fix typos

acvitivities -> activities

Update Showcase Receive Azure IOT HUB message (#454)

* updates the showcase to point to azureiot

* updates the Author name to iSteer Technologies

* resolves merge conflcits

* Updates the list to work with send data to Azure IOT HUB

* updates the showcase data for new activity that receives messages from Azure IotHub

Merge pull request #427 from mmussett/patch-6

Update items.toml

Merge pull request #339 from TIBCOSoftware/pubnub-demo

Adding a sample app for PubNub

Added random number value generator to the list (#296)

Update CONTRIBUTING.md

fixing a small typo

Create ISSUE_TEMPLATE.md

Create ISSUE_TEMPLATE.md

Update LICENSE (#190)

Updates so GH flags the license correctly

Update LICENSE (#190)

Updates so GH flags the license correctly