Update DC Current per I/O Pin specification

[ProgrammingElectronics]

What This PR Changes

• I assume many users of the Arduino Q will be curious of the current limits for the traditional UNO pin footprint.

Looking at the STM datasheet:
https://www.st.com/resource/en/datasheet/stm32u585ai.pdf

I believe the 20 mA current limit applies to the JDIGITAL pins as well?

I will note, that listing JMEDIA next to the "DC Current per I/O pin:" has me a little unsure.

When I look at the Arduino UNO Q datasheet:
https://docs.arduino.cc/resources/datasheets/ABX00162-ABX00173-datasheet.pdf

I get the impression that JMISC is where I will find some MCU GPIO (Not JMEDIA, which appears to expose MPU pins)

But I may be mistaken.

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[CLAassistant]

All committers have signed the CLA.

[ProgrammingElectronics]

The link this CLAassistant agent is providing takes me a a page that does not look correct:

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Please agree to the CLA for arduino/docs-content
Version: (a BLANK BOX is showed)

[ ] I accept that the information I provide to sign this CLA will be maintained in accordance with project owner's privacy policy *

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There is not even a submit button, or any details about the CLA? I have no problem signing a CLA, but the text is not showing...

And now it looks like this:

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Error
There is no CLA to sign for arduino/docs-content

(API rate limit exceeded for user ID 4233897. If you reach out to GitHub Support for help, please include the request ID 94D3:375226:13A5F5D:10F9BE2:69BAE0CF and timestamp 2026-03-18 17:28:48 UTC. For more on scraping GitHub and how it may affect your rights, please review our Terms of Service (https://docs.github.com/en/site-policy/github-terms/github-terms-of-service))

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[per1234]

Hi @ProgrammingElectronics. I apologize for the inconvenience. The CLA Assistant service we use is unfortunately prone to some transient outages. I just checked and the CLA is visible for me. It does take a bit of time to load. Please check it again now.

Let me know if you still encounter an error, or have any questions or concerns.