Update README.md

Add Microsoft branding.

Author: v-thepet

README.md

@@ -4,7 +4,7 @@ Eclipse ThreadX is a real time operating system (RTOS) for Internet of Things (I
 
 Eclipse ThreadX provides an EAL4+ Common Criteria security certified environment, including full IP layer security via IPsec and socket layer security via TLS and DTLS. Our software crypto library has achieved FIPS 140-2 certification. We also leverage hardware cryptographic capabilities, memory protection via ThreadX MODULES, and support for ARM's TrustZone ARMv8-M security features.
 
-**IMPORTANT:** Azure RTOS, an embedded development suite with the ThreadX real-time operating system, has been deployed on more than 12 billion devices worldwide. Azure RTOS has now transitioned to an open-source project under the stewardship of the Eclipse Foundation, a recognized leader in hosting open-source IoT projects.
+**IMPORTANT:** Microsoft Azure RTOS, an embedded development suite with the ThreadX real-time operating system, has been deployed on more than 12 billion devices worldwide. Azure RTOS has now transitioned to an open-source project under the stewardship of the Eclipse Foundation, a recognized leader in hosting open-source IoT projects.
 
 With Eclipse Foundation as the new home, Azure RTOS becomes Eclipse ThreadX. For more information, see the following pages: