Change in coreboot[master]: Documentation: Add template for deprecation notices

[Patrick Georgi (Code Review)]

Attention is currently required from:  Felix Singer, Mike Banon, Branden Waldner, Martin Roth, [e-mail], Paul Menzel, Angel Pons, Arthur Heymans.
Patrick Georgi has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59677 )

Change subject: Documentation: Add template for deprecation notices
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Patch Set 3:

(4 comments)

File Documentation/releases/templates.md:

https://review.coreboot.org/c/coreboot/+/59677/comment/cb6f08c9_403f73b1 
PS2, Line 6: down the road (must cover at least 6 months from
           : the release that comes with the notice) some part of coreboot
> I feel like there is missing something before/after the brackets.

I think it's correct but the sentence is rather convoluted. The side note doesn't help, either. Please check if the new version is easier to understand.

https://review.coreboot.org/c/coreboot/+/59677/comment/705e1345_a49186e6 
PS2, Line 10: helps keep
> helps *to* keep

Possible, but not this time: https://english.stackexchange.com/questions/3578/what-is-the-correct-way-to-...

https://review.coreboot.org/c/coreboot/+/59677/comment/c62339c1_19baf54c 
PS2, Line 11: improving
> improve

Done

https://review.coreboot.org/c/coreboot/+/59677/comment/c7c5854a_b7390606 
PS2, Line 47: #### Call to action
> Add new line here

Done