Add table anchors in About billing for GitHub Actions

[jsoref]

What article on docs.github.com is affected?

https://docs.github.com/en/billing/managing-billing-for-github-actions/about-billing-for-github-actions

What part(s) of the article would you like to see updated?

Each of these should have a section so that one could easily link to it:

docs/content/billing/managing-billing-for-github-actions/about-billing-for-github-actions.md

Lines 26 to 32 in 77e4e47

	|Product | Storage | Minutes (per month)|
	|------- | ------- | ---------|
	| {% data variables.product.prodname_free_user %} | 500 MB | 2,000 |
	| {% data variables.product.prodname_pro %} | 1 GB | 3,000 |
	| {% data variables.product.prodname_free_team %} for organizations | 500 MB | 2,000 |
	| {% data variables.product.prodname_team %} | 2 GB | 3,000 |
	| {% data variables.product.prodname_ghe_cloud %} | 50 GB | 50,000 |

docs/content/billing/managing-billing-for-github-actions/about-billing-for-github-actions.md

Lines 36 to 40 in 77e4e47

	| Operating system | Minute multiplier |
	|------- | ---------|
	| Linux | 1 |
	| macOS| 10 |
	| Windows | 2 |

docs/content/billing/managing-billing-for-github-actions/about-billing-for-github-actions.md

Lines 52 to 56 in 77e4e47

	| Operating system | Per-minute rate |
	|------- | ---------|
	| Linux | $0.008 |
	| macOS | $0.08 |
	| Windows | $0.016 |

docs/content/billing/managing-billing-for-github-actions/about-billing-for-github-actions.md

Lines 64 to 68 in 77e4e47

	At the end of the month, {% data variables.product.prodname_dotcom %} calculates the cost of minutes and storage used over the amount included in your account. For example, if your organization uses {% data variables.product.prodname_team %} and allows unlimited spending, using 15,000 minutes could have a total storage and minute overage cost of $56, depending on the operating systems used to run jobs.
	- 5,000 (3,000 Linux and 2,000 Windows) minutes = $56 ($24 + $32).
	- 3,000 Linux minutes at $0.008 per minute = $24.
	- 2,000 Windows minutes at $0.016 per minute = $32.

docs/content/billing/managing-billing-for-github-actions/about-billing-for-github-actions.md

Lines 70 to 75 in 77e4e47

	{% data variables.product.prodname_dotcom %} calculates your storage usage for each month based on hourly usage during that month. For example, if you use 3 GB of storage for 10 days of March and 12 GB for 21 days of March, your storage usage would be:
	- 3 GB x 10 days x (24 hours per day) = 720 GB-Hours
	- 12 GB x 21 days x (24 hours per day) = 6,048 GB-Hours
	- 720 GB-Hours + 6,048 GB-Hours = 6,768 GB-Hours
	- 6,768 GB-Hours / (744 hours per month) = 9.0967 GB-Months

Additional information

I want to be able to link to the section that identifies macos runners as considerably more expensive than linux runners, but I can't because there are no sections for the tables.

[raunak6662]

@jsoref you want the updated doc to have the link that you have mentioned above with each section?

The above snip has one section with its link.

[jsoref]

@raunak6662: I have no idea what you're saying.

Here's what I want:
https://github.com/jsoref/github-docs/blob/billing-anchors/content/billing/managing-billing-for-github-actions/about-billing-for-github-actions.md#included-storage-and-minutes-per-month
https://github.com/jsoref/github-docs/blob/billing-anchors/content/billing/managing-billing-for-github-actions/about-billing-for-github-actions.md#operating-system-minute-multiplier
https://github.com/jsoref/github-docs/blob/billing-anchors/content/billing/managing-billing-for-github-actions/about-billing-for-github-actions.md#operating-system-per-minute-rate
https://github.com/jsoref/github-docs/blob/billing-anchors/content/billing/managing-billing-for-github-actions/about-billing-for-github-actions.md#sample-minutes-cost-calculation
https://github.com/jsoref/github-docs/blob/billing-anchors/content/billing/managing-billing-for-github-actions/about-billing-for-github-actions.md#sample-storage-cost-calculation

[ramyaparimi]

@jsoref Thanks so much for opening an issue! I'll triage this for the team to take a look 👀

[lecoursen]

I agree that this would be helpful for users and also for our own support team! You or anyone else is welcome to open a PR to add headers to those sections.