sponsors: add Arm

Author: gerryd

content/sponsors/arm-big.png

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+---
+title: Arm
+url: https://www.arm.com/
+---
+
+Arm is leader in global semiconductor design and software. Our
+energy-efficient processor designs and software platforms have enabled
+advanced computing in more than 270 billion chips to date and are
+defining the future of computing. Collaboration is at the heart of all
+we do. With more than 1,000 technology partners, Arm provides a
+trusted foundation for a vast range of applications, from the sensor
+to the smartphone and the supercomputer. We support thousands of
+open-source software [projects](https://www.arm.com/resources/open-source),
+enabling more than 15 million developers who target Arm platforms to
+build, deploy, and manage their projects seamlessly, enabling top
+performance across the wide spectrum of hardware on Arm.
+
+Arm supports the event financially.