A/B Test on Demo Form for Phone number

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#### Briefly describe the request

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A/B Test the demo form on /demo


#### What is/are the relevant URL(s)

https://about.gitlab.com/demo/

#### Please identify the directly responsible individual (DRI) and stakeholders

@EWhelchel @Elsje @amimmo @amy.waller 

#### What team/dept/company initiatives does this relate to?

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#### Is there a due date? If so, why?

No specific due date, we would like to get this done to improve lead conversion.
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#### What are the project goals?

* Improve Form conversion
* Improve lead conversion rates, making it easier for sales to reach prospect via 

#### Who is the audience?

Prospects who land on the Demo page.

#### What problem(s) are we trying to solve?

Increase lead conversion rates, without sacrificing too much of form conversion. Phone number being required should make it easier for SDRs to reach out to prospects.
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#### What are the measurable key performance indicators (KPI)?

* Form Conversion
* Lead Conversion
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#### What are the project must-haves?

AB Test on each form.
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#### What are the project should-haves?

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#### What are the project could-haves?

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#### What are the project wont-haves?

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#### Where do you expect traffic to come from?

Typical traffic to page - no changes
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#### Please provide any related media files

Embed Code for B test form: I can't get this to paste 

Let me know if you need the code for the A test.

#### Will you need an opengraph image for social sharing?

No

#### If applicable, please provide some example webpages for design guidance.

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#### If applicable, do you have any user journeys, prototypes, content/data?

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#### Please create a checklist of deliverables in this phase

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- [ ] Update page
- [ ] Approved review of changes
- [ ] Implement AB test
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- [ ] Release
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- [ ] Code cleanup
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- [ ] A/B Test set up
- [ ] Create a followup issue for the next phase (monitor results)

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Story points: 2.0