chore: auto generate docs

doc/obsidian.txt

@@ -83,6 +83,9 @@ Search functionality (e.g. via the `:ObsidianSearch` and
 <https://github.com/nvim-telescope/telescope.nvim> or one of the `fzf`
 alternatives (see |obsidian-plugin-dependencies| below).
 
+You may also want to install `yq` <https://github.com/mikefarah/yq> for more
+robust frontmatter YAML parsing.
+
 
 INSTALL AND CONFIGURE                         *obsidian-install-and-configure*
 
@@ -335,6 +338,12 @@ This is a complete list of all of the options that can be passed to
       -- or replacing the current buffer (default)
       -- Accepted values are "current", "hsplit" and "vsplit"
       open_notes_in = "current"
+
+      -- Optional, set the YAML parser to use. The valid options are:
+      --  * "native" - uses a pure Lua parser that's fast but not very robust.
+      --  * "yq" - uses the command-line tool yq (https://github.com/mikefarah/yq), which is more robust
+      --    but slower and needs to be installed separately.
+      yaml_parser = "native",
     }
 <