PR template: remove don't delete HTML comments; add Summary examples; grammar

[Brambor]

Summary

None

Purpose of change

I thought the tests on a PR would fail if the HTML comments were deleted.

from Discord @GuardianDll

it says this so first time contributors won't remove it without reading

I don't believe this will start happening now.

Describe the solution

Remove the sentence that led me to believe that.
Also, fix some grammar reported by Gramarly, so that the template isn't red for me.

Describe alternatives you've considered

N/A

Testing

I see that I am writing this PR with the new template!

I am assuming the PR tester will not throw any errors as I have removed HTML comments in this PR.

Additional context

N/A

[Maleclypse]

"I don't believe this will start happening now." That would be incredible since it already happens now and I have to fix new contributors PR Summaries on the regular.

[Brambor]

"I don't believe this will start happening now." That would be incredible since it already happens now and I have to fix new contributors PR Summaries on the regular.

I mean it will not affect the situation. It will not happen more nor less.

Do you think the sentence helps? I don't feel strongly about removing it. I would like the next contributors to not be as confused as I was. Managing the PR is easier when you remove the HTML comments.

If you prefer, I will leave it in and reduce this to grammar fixes. I mean, you're the one who deals with it daily. And I thank you for that!

[Brambor]

I decided to add some summary examples too. They are taken from the existing changelog. A real example might get across better than a generic template.

[Maleclypse]

I decided to add some summary examples too. They are taken from the existing changelog. A real example might get across better than a generic template.

I like those examples. We’ll try it this way and see if it improves. Let me know when ready to merge.

[Brambor]

Let me know when ready to merge.

It's ready :).