docs: update readme

README.md

@@ -121,16 +121,18 @@ cmp.setup(
 Activate otter for the current document with
 
 ```lua
--- table of embedded languages to look for
+-- table of embedded languages to look for.
 -- required (no default)
 local languages = {'python', 'lua' }
+
 -- enable completion/diagnostics
 -- defaults are true
 local completion = true
 local diagnostics = true
 -- treesitter query to look for embedded languages
 -- uses injections if nil or not set
 local tsquery = nil
+
 otter.activate(languages, completion, diagnostics, tsquery)
 ```
 
@@ -143,6 +145,20 @@ and you will see code completion and diagnostics (on save).
 
 Then use the `otter.ask_...` functions to e.g. ask for hover documentation, references or the definition.
 
+`otter.ask_` functions fall back to regular lsp requests on the main buffer when not in an otter context.
+Currently implemented functions are:
+
+```lua
+otter.ask_definition()
+otter.ask_type_definition()
+otter.ask_hover()
+otter.ask_references()
+otter.ask_document_symbols()
+otter.ask_rename()
+otter.ask_format()
+```
+
+
 ### Dependencies
 
 `otter.nvim` relies on the following plugins:
@@ -157,3 +173,4 @@ Then use the `otter.ask_...` functions to e.g. ask for hover documentation, refe
 
 ![An otter eagerly awaiting your lsp requests. Generated with DALL-E 2.](img/2022-12-23-15-59-24.png)
 
+