UX: Navigation update for IA Refresh
## Goal
We would like to update the navigation which will improve find-ability as measured by alignment with our new marketing site IA refresh.
### Jobs To Be Done
* **Situation**: *When a user comes to our site...*
* **Motivation**: *they want to find what they are looking for...*
* **Outcome**: *so they can use our site quickly and easily.*
## Page(s)
Which page(s) are involved in this request?
- [Navigation Figma](https://www.figma.com/file/fPzNDCzZAUlAHuq9iQSFmn/Navigation-MVC5?node-id=0%3A1)
- [Navigation spreadsheet](https://docs.google.com/spreadsheets/d/1ualGLPCyFjEpiskrfAe2ftqoTAw8t56lO1LMzMT7Ojo/edit?usp=sharing)
## DCI
[DRI, Consulted, Informed](https://about.gitlab.com/handbook/people-group/directly-responsible-individuals/#dri-consulted-informed-dci)
- [ ] DRI: @jhalloran
- [ ] Consulted: @Tinaliseng
- [ ] Informed: `Everyone`
## In scope
What is within scope of this request?
- [ ] Updated header navigation
## Out of scope
What is out of scope and not part of this iteration?
- Footer navigation
## Requirements
What are the requirements for this request? Checklist below is an example of common requirements, please check all that apply and adjust as necessary:
- [ ] Copy writing
- [ ] Illustration
- [ ] Custom Graphics
- [ ] Research
- [ ] Data / Analytics
- [x] UX Design
- [ ] Engineering
epic