Remove donation links from readme

The Arduino company is no longer soliciting monetary donations. Community members who wish to contribute to the project
still have opportunities to do so via the other options listed under the "How to contribute" section of the readme.

Those who wish to make a monetary contribution can still do so by purchasing official Arduino products. For this reason,
that part of the donation request text is preserved. Since it doesn't make sense in its previous location under a
"Donations" section after the removal of the context of other monetary contribution options, that text is hereby moved
to the "How to contribute" section.

Author: per1234

README.md

@@ -60,6 +60,10 @@ In order to ease code reviews and have your contributions merged faster, here is
 - Maintain clean commit history and use meaningful commit messages. PRs with messy commit history are difficult to review and require a lot of work to be merged.
 - Your PR must pass all CI tests before we will merge it. If you're seeing an error and don't think it's your fault, it may not be! The reviewer will help you if there are test failures that seem not related to the change you are making.
 
+### Support the project
+
+This open source code was written by the Arduino team and is maintained on a daily basis with the help of the community. We invest a considerable amount of time in development, testing and optimization. Please consider [buying original Arduino boards](https://store.arduino.cc/) to support our work on the project.
+
 ## Build
 
 To build the Arduino Language Server you need:
@@ -107,10 +111,6 @@ If you do not have an Arduino CLI config file, you can create one by running:
 arduino-cli config init
 ```
 
-## Donations
-
-This open source code was written by the Arduino team and is maintained on a daily basis with the help of the community. We invest a considerable amount of time in development, testing and optimization. Please consider [donating](https://www.arduino.cc/en/donate/) or [sponsoring](https://github.com/sponsors/arduino) to support our work, as well as [buying original Arduino boards](https://store.arduino.cc/) which is the best way to make sure our effort can continue in the long term.
-
 ## License
 
 The code contained in this repository is licensed under the terms of the GNU Affero General Public License version 3 license. If you have questions about licensing please contact us at [license@arduino.cc](mailto:license@arduino.cc).