in_thermal: add examples for yaml configuration (fluent#1337)

Signed-off-by: Takahiro Yamashita <nokute78@gmail.com>

Author: nokute78

pipeline/inputs/thermal.md

@@ -59,6 +59,8 @@ Copyright (C) Treasure Data
 
 In your main configuration file append the following _Input_ & _Output_ sections:
 
+{% tabs %}
+{% tab title="fluent-bit.conf" %}
 ```python
 [INPUT]
     Name thermal
@@ -68,4 +70,17 @@ In your main configuration file append the following _Input_ & _Output_ sections
     Name  stdout
     Match *
 ```
-
+{% endtab %}
+
+{% tab title="fluent-bit.yaml" %}
+```yaml
+pipeline:
+    inputs:
+        - name: thermal
+          tag: my_thermal
+    outputs:
+        - name: stdout
+          match: '*'
+```
+{% endtab %}
+{% endtabs %}