Support Natural Search on Markdown Files

- Reason:
  Allow natural search on markdown based notes, documentation,
  websites etc

- Details:
  - Create markdown processor to extract Markdown entries (identified by
    Heading) into standard jsonl format required by text_search
  - Update API, Configs to support interfacing with new markdown type
  - Update Emacs, Web clients to support interfacing with new markdown
    type via API
  - Update Readme to mentiond markdown is also supported

Closes #35

src/utils/config.py

@@ -11,6 +11,7 @@ class SearchType(str, Enum):
     Notes = "notes"
     Ledger = "ledger"
     Music = "music"
+    Markdown = "markdown"
     Image = "image"
 
 
@@ -39,6 +40,7 @@ class SearchModels():
     notes_search: TextSearchModel = None
     ledger_search: TextSearchModel = None
     music_search: TextSearchModel = None
+    markdown_search: TextSearchModel = None
     image_search: ImageSearchModel = None
 
 

src/utils/rawconfig.py

@@ -31,6 +31,7 @@ class ContentConfig(ConfigBase):
     ledger: Optional[TextContentConfig]
     image: Optional[ImageContentConfig]
     music: Optional[TextContentConfig]
+    markdown: Optional[TextContentConfig]
 
 class TextSearchConfig(ConfigBase):
     encoder: Optional[str]