Fix markdown lint issues

extensions/distributed-tracing.md

@@ -1,36 +1,40 @@
 # Distributed Tracing extension
 
-This extension embeds context from 
+This extension embeds context from
 [W3C TraceContext](https://www.w3.org/TR/trace-context/) into a CloudEvent.
 
 The [OpenTelemetry specification](
 https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/context/context.md#overview)
 defines context as:
 
-> A Context is a propagation mechanism which carries execution-scoped
- values across API boundaries and between logically associated execution units. Cross-cutting concerns access their data in-process using the same shared Context object.
+> A Context is a propagation mechanism which carries execution-scoped values across
+ API boundaries and between logically associated execution units. Cross-cutting
+ concerns access their data in-process using the same shared Context object.
 
 Context propagation enables `Distributed Tracing`.
 Also from [OpenTelemetry specification](https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/overview.md#tracing-signal):
 
-> A distributed trace is a set of events, triggered as a result of a single logical operation, consolidated across various components of an application. A distributed trace contains events that cross process, network and security boundaries.
+> A distributed trace is a set of events, triggered as a result of a single
+ logical operation, consolidated across various components of an application.
+ A distributed trace contains events that cross process, network and security boundaries.
 
 ## Using the Distributed Tracing Extension
 
-The [OpenTelemetry Semantic Conventions for CloudEvents](https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/semantic_conventions/cloudevents.md) defines in which scenarios
-this extension should be used and how to use it.
+The
+[OpenTelemetry Semantic Conventions for CloudEvents](https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/semantic_conventions/cloudevents.md)
+defines in which scenarios this extension should be used and how to use it.
 
 ## Attributes
 
-#### traceparent
+### traceparent
 
 - Type: `String`
 - Description: Contains a version, trace ID, span ID, and trace options as
   defined in [section 3.2](https://www.w3.org/TR/trace-context/#traceparent-header)
 - Constraints
   - REQUIRED
 
-#### tracestate
+### tracestate
 
 - Type: `String`
 - Description: a comma-delimited list of key-value pairs, defined by