Remove unused alt-hero field from public-tree-map.md project file

[JessicaLucindaCheng]

Overview

As a developer, I want to make sure unused code is removed from the codebase in project cards so that

• time to load the website is as low as possible,
• it's easier to understand the code, and
• time to review the code is reduced.

Details

In project md files, image-hero is a decorative background image and alt-hero is the alt text associated with image-hero. However, alt-hero text is not used anywhere in our codebase since the image-hero is used as an SCSS background image.

Moreover, if the image-hero were to be used in an img HTML tag in the future, the alt text for all the image-hero images would be alt="", which could be set programmatically for all the alt properties associated with each image-hero.

Action Items

• For the file _projects/public-tree-map.md, remove line 8 for the alt-hero

alt-hero: 'Coral tree from City of Santa Monica. Photo by Dave Baiocchi www.studiobaiocchi.net'

• Once the pull request associated with this issue is approved and merged, please update and edit epic Remove unused alt-hero in project md files #2722 by
  • Checking off the dependency for this issue
  • If all dependencies are checked off, please move issue Remove unused alt-hero in project md files #2722 to the New Issue Approval column and remove the Dependency label

Resources/Instructions

• This issue is part of epic Remove unused alt-hero in project md files #2722

File and code links you will need to work on this issue

• Directory to find the page once you have it in your IDE: _projects/public-tree-map.md
• Click on the link below to see the source file code:
  

  website/_projects/public-tree-map.md

  Line 8 in c8a48d4

  alt-hero: 'Coral tree from City of Santa Monica. Photo by Dave Baiocchi www.studiobaiocchi.net'

Information about WCAG

• WCAG
• Web Accessibility Tutorials: Decorative Images

[h3nry-m]

Progress: "What is the current status of your project? What have you completed and what is left to do?"
Currently complete!
Blockers: "Difficulties or errors encountered."
No blockers.
Availability: "How much time will you have this week to work on this issue?"
This weekend.
ETA: "When do you expect this issue to be completed?"
Just completed.

[ExperimentsInHonesty]

I didn't realize this alt text was a photo credit. This PR will need to be reverted, and the credit information added to the Credits page

[jdingeman]

I didn't realize this alt text was a photo credit. This PR will need to be reverted, and the credit information added to the Credits page

• New issue made Add image-hero-credit to public-tree-map.md and create a new credit #3922