Update Reactor Context link (#345)

Signed-off-by: Tran Ngoc Nhan <[email protected]>

Author: ngocnhan-tran1996

docs/modules/ROOT/pages/index.adoc

@@ -1,4 +1,4 @@
 [[context-propagation-support]]
 = Context Propagation support
 
-The https://github.com/micrometer-metrics/context-propagation[Context Propagation] library assists with context propagation across different types of context mechanisms, such as `ThreadLocal`, Reactor https://projectreactor.io/docs/core/release/reference/#context[Context], and others.
+The https://github.com/micrometer-metrics/context-propagation[Context Propagation] library assists with context propagation across different types of context mechanisms, such as `ThreadLocal`, Reactor https://projectreactor.io/docs/core/release/reference/advancedFeatures/context.html[Context], and others.