DEVX-489: tweaks to kafka streams tutorial (#69)
DEVX-489: tweaks to kafka streams tutorial (#69)

* Feedback from Ben from blog post review

* Feedback from Michael from blog post review

* DOCS-1023: potential fix for broken image link

* Tweak wording

* Bingham feedback

* Minor tweak

confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples