[doc] Enhancement: Adding Badges to README
Demikernel
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+[![Build Libs](https://github.com/demikernel/demikernel/actions/workflows/build-libs.yml/badge.svg)](https://github.com/demikernel/demikernel/actions/workflows/build-libs.yml)
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+
_Demikernel_ is a library operating system (LibOS) architecture designed for use
with kernel-bypass I/O devices. This architecture offers a uniform system call
API across kernel-bypass technologies (e.g., RDMA, DPDK) and OS functionality
