Improve tracing documentation

docs/content/observability/tracing/zipkin.md

@@ -2,11 +2,16 @@
 
 To enable the Zipkin:
 
-```toml tab="File"
+```toml tab="File (TOML)"
 [tracing]
   [tracing.zipkin]
 ```
 
+```yaml tab="File (YAML)"
+tracing:
+  zipkin: {}
+```
+
 ```bash tab="CLI"
 --tracing
 --tracing.zipkin
@@ -18,12 +23,18 @@ _Required, Default="http://localhost:9411/api/v1/spans"_
 
 Zipkin HTTP endpoint used to send data.
 
-```toml tab="File"
+```toml tab="File (TOML)"
 [tracing]
   [tracing.zipkin]
     httpEndpoint = "http://localhost:9411/api/v1/spans"
 ```
 
+```yaml tab="File (YAML)"
+tracing:
+  zipkin:
+    httpEndpoint: http://localhost:9411/api/v1/spans
+```
+
 ```bash tab="CLI"
 --tracing
 --tracing.zipkin.httpEndpoint="http://localhost:9411/api/v1/spans"
@@ -35,12 +46,18 @@ _Optional, Default=false_
 
 Enable Zipkin debug.
 
-```toml tab="File"
+```toml tab="File (TOML)"
 [tracing]
   [tracing.zipkin]
     debug = true
 ```
 
+```yaml tab="File (YAML)"
+tracing:
+  zipkin:
+    debug: true
+```
+
 ```bash tab="CLI"
 --tracing
 --tracing.zipkin.debug=true
@@ -52,12 +69,18 @@ _Optional, Default=false_
 
 Use Zipkin SameSpan RPC style traces.
 
-```toml tab="File"
+```toml tab="File (TOML)"
 [tracing]
   [tracing.zipkin]
     sameSpan = true
 ```
 
+```yaml tab="File (YAML)"
+tracing:
+  zipkin:
+    sameSpan: true
+```
+
 ```bash tab="CLI"
 --tracing
 --tracing.zipkin.sameSpan=true
@@ -69,12 +92,18 @@ _Optional, Default=true_
 
 Use Zipkin 128 bit root span IDs.
 
-```toml tab="File"
+```toml tab="File (TOML)"
 [tracing]
   [tracing.zipkin]
     id128Bit = false
 ```
 
+```yaml tab="File (YAML)"
+tracing:
+  zipkin:
+    id128Bit: false
+```
+
 ```bash tab="CLI"
 --tracing
 --tracing.zipkin.id128Bit=false
@@ -86,12 +115,18 @@ _Required, Default=1.0_
 
 The rate between 0.0 and 1.0 of requests to trace.
 
-```toml tab="File"
+```toml tab="File (TOML)"
 [tracing]
   [tracing.zipkin]
     sampleRate = 0.2
 ```
 
+```yaml tab="File (YAML)"
+tracing:
+  zipkin:
+    sampleRate: 0.2
+```
+
 ```bash tab="CLI"
 --tracing
 --tracing.zipkin.sampleRate="0.2"