README: rearrange.

Let's put things users are more likely to care about nearer the top.

README.md

@@ -21,6 +21,18 @@ Second, read the [Troubleshooting Checklist](https://docs.brew.sh/Troubleshootin
 
 **If you don't read these it will take us far longer to help you with your problem.**
 
+## Donations
+
+Homebrew is a non-profit project run entirely by unpaid volunteers. We need your funds to pay for software, hardware and hosting around continuous integration and future improvements to the project. Every donation will be spent on making Homebrew better for our users.
+
+Please consider a regular donation through [GitHub Sponsors](https://github.com/sponsors/Homebrew), [Open Collective](https://opencollective.com/homebrew) or [Patreon](https://www.patreon.com/homebrew). Homebrew is fiscally hosted by the [Open Source Collective](https://opencollective.com/opensource).
+
+## Community
+
+- [Homebrew/discussions (forum)](https://github.com/orgs/Homebrew/discussions)
+- [@MacHomebrew (Twitter)](https://twitter.com/MacHomebrew)
+- [@homebrew@fosstodon.org (Mastodon)](https://fosstodon.org/@homebrew)
+
 ## Contributing
 
 We'd love you to contribute to Homebrew. First, please read our [Contribution Guide](CONTRIBUTING.md) and [Code of Conduct](https://github.com/Homebrew/.github/blob/HEAD/CODE_OF_CONDUCT.md#code-of-conduct).
@@ -49,23 +61,11 @@ Homebrew's maintainers are [Alexander Bayandin](https://github.com/bayandin), [B
 
 Former maintainers with significant contributions include [Misty De Méo](https://github.com/mistydemeo), [Markus Reiter](https://github.com/reitermarkus), [Shaun Jackman](https://github.com/sjackman), [Vítor Galvão](https://github.com/vitorgalvao), [Claudia Pellegrino](https://github.com/claui), [Seeker](https://github.com/SeekingMeaning), [William Woodruff](https://github.com/woodruffw), [Jan Viljanen](https://github.com/javian), [JCount](https://github.com/jcount), [commitay](https://github.com/commitay), [Dominyk Tiller](https://github.com/DomT4), [Tim Smith](https://github.com/tdsmith), [Baptiste Fontaine](https://github.com/bfontaine), [Xu Cheng](https://github.com/xu-cheng), [Martin Afanasjew](https://github.com/UniqMartin), [Brett Koonce](https://github.com/asparagui), [Charlie Sharpsteen](https://github.com/Sharpie), [Jack Nagel](https://github.com/jacknagel), [Adam Vandenberg](https://github.com/adamv), [Andrew Janke](https://github.com/apjanke), [Alex Dunn](https://github.com/dunn), [neutric](https://github.com/neutric), [Tomasz Pajor](https://github.com/nijikon), [Uladzislau Shablinski](https://github.com/vladshablinsky), [Alyssa Ross](https://github.com/alyssais), [ilovezfs](https://github.com/ilovezfs), [Chongyu Zhu](https://github.com/lembacon) and Homebrew's creator: [Max Howell](https://github.com/mxcl).
 
-## Community
-
-- [Homebrew/discussions (forum)](https://github.com/orgs/Homebrew/discussions)
-- [@MacHomebrew (Twitter)](https://twitter.com/MacHomebrew)
-- [@homebrew@fosstodon.org (Mastodon)](https://fosstodon.org/@homebrew)
-
 ## License
 
 Code is under the [BSD 2-clause "Simplified" License](LICENSE.txt).
 Documentation is under the [Creative Commons Attribution license](https://creativecommons.org/licenses/by/4.0/).
 
-## Donations
-
-Homebrew is a non-profit project run entirely by unpaid volunteers. We need your funds to pay for software, hardware and hosting around continuous integration and future improvements to the project. Every donation will be spent on making Homebrew better for our users.
-
-Please consider a regular donation through [GitHub Sponsors](https://github.com/sponsors/Homebrew), [Open Collective](https://opencollective.com/homebrew) or [Patreon](https://www.patreon.com/homebrew). Homebrew is fiscally hosted by the [Open Source Collective](https://opencollective.com/opensource).
-
 ## Sponsors
 
 Our macOS continuous integration infrastructure is hosted by [MacStadium's Orka](https://www.macstadium.com/customers/homebrew).