fix(README): update path to logo (#115)

Author: AvineshTripathi

README.md

@@ -1,6 +1,6 @@
 # Node Readiness Controller
 
-<img style="float: right; margin: auto;"  width="180px" src="docs/logo/node-readiness-controller-logo.svg"/>
+<img style="float: right; margin: auto;"  width="180px" src="docs/book/src/logo/node-readiness-controller-logo.svg"/>
 
 A Kubernetes controller that provides fine-grained, declarative readiness for nodes. It ensures nodes only accept workloads when all required components eg: network agents, GPU drivers,
 storage drivers or custom health-checks, are fully ready on the node.