chore: adding template for prompt node (#3738)

docs/_src/api/pydoc/prompt-node.yml

@@ -0,0 +1,26 @@
+loaders:
+ - type: python
+ search_path: [../../../../haystack/nodes/prompt]
+ modules: ['prompt_node']
+ ignore_when_discovered: ['__init__']
+processors:
+ - type: filter
+ expression: 
+ documented_only: true
+ do_not_filter_modules: false
+ skip_empty_modules: true
+ - type: smart
+ - type: crossref
+renderer:
+ type: renderers.ReadmeRenderer
+ excerpt: Uses Large Language Models directly in your pipelines.
+ category: 6310ca73c622850ddd3875a2
+ title: PromptNode API
+ slug: prompt-node-api
+ order: 115
+ markdown:
+ descriptive_class_title: false
+ descriptive_module_title: true
+ add_method_class_prefix: true
+ add_member_class_prefix: false
+ filename: prompt_node_api.md