Auto generate vim docs

doc/outline.txt

@@ -262,6 +262,9 @@ Show defaults ~
         winhl = 'NormalFloat:',
         -- Pseudo-transparency of the preview window, see ':h winblend'
         winblend = 0
+        -- Experimental feature that let's you edit the source content live
+        -- in the preview window. Like VS Code's "peek editor".
+        live = false
       },
     
       -- These keymaps can be a string or a table for multiple keys.
@@ -936,6 +939,28 @@ Disable icons for specific kinds, and for others use lspkind:
 
 
 
+LIVE, EDITABLE PREVIEWS ~
+
+Press `K` to open the preview, press `K` again to focus on the preview window
+to make any quick edits, similar to VS Code’s reference window "peek editor".
+
+Then use `:q` to close the window, and continue browsing the outline.
+
+>lua
+    preview_window = {
+      live = true,
+    }
+<
+
+Note that this feature is experimental and may be unstable.
+
+
+https://github.com/hedyhli/outline.nvim/assets/50042066/183fc5f9-b369-41e2-a831-a4185704d76d
+
+Auto-preview with the feature is also supported, set `auto_preview = true` and
+press `K` to focus on the auto-opened preview window. `:q` to quit the window.
+
+
 LIMITATIONS                                              *outline-limitations*
 
 
@@ -949,24 +974,80 @@ instead, there would be highlighting issues (say the calculated starting line
 was within a markdown code block, so what was previously not supposed to be
 code is now highlighted as code).
 
+If this poses a problem for you, you should try out the |outline-live-preview|
+feature, uses the code buffer directly for displaying the preview.
+
 
 MANY OUTLINES ~
 
 Outline.nvim does not support multiple outline windows in the same tabpage as
 of now However, this feature is planned
 <https://github.com/hedyhli/outline.nvim/issues/26>, and you can use a single
-outline that auto-updates on buffer switches. Per-tabpage outline is supported.
+outline that auto-updates on buffer switches.
+
+That said, per-tabpage outline is supported.
 
 
 RELATED PLUGINS                                      *outline-related-plugins*
 
-- Aerial.nvim
-- nvim-navic
-- nvim-navbuddy
-- dropdown.nvim
-- treesitter (inspect/edit)
-- lspsaga
-- navigator.lua
+- **Aerial.nvim** <https://github.com/stevearc/aerial.nvim>
+    The most obvious plugin alternative to Outline.nvim would be Aerial. It
+    provides an outline window with a lot of features that outline.nvim does not
+    have (but might add in the future). That said, outline.nvim also has features
+    that Aerial does not support. I do not find it productive to be listing out the
+    exact details of which, as a table here, since both plugins are in active
+    development and the table would get out of date quickly; Instead, I have listed
+    a few example use-cases where you may want to use Aerial, and others
+    Outline.nvim.
+    Aerial does a great job at supercharging vim’s built-in outline (`gO`). It
+    supports treesitter and vimdoc which Outline.nvim does not provide by default.
+    (Note that Aerial also supports Norg through treesitter like Outline.nvim, but
+    as of writing it does not support JSX like Outline.nvim does.)
+    - If you wish to prioritize treesitter as the provider ("backend" in Aerial’s
+        terms) for your symbols, you should use Aerial. This lets your have symbols
+        for languages that you might not want to set up an LSP for, which is quite
+        useful. Treesitter support is a planned feature in Outline.nvim but might
+        not arrive very soon.
+    - Aerial.nvim supports only Neovim 0.8 and above for the bleeding-edge
+        features, as far as I know. You should use Outline.nvim (or the
+        alternatives below) if you use Neovim 0.7 and wish to have equal support.
+    - At the moment, integrations such as Telescope and statuslines in Outline.nvim
+        has not been very well implemented yet, though they are planned features. If you
+        wish to use this, you should use Aerial.
+    - Outline.nvim supports both inclusive and exclusive symbol filtering.
+    In addition to these, Aerial also supports a `AerialNav` window which gives you
+    a miller column view of symbol hierarchy similar to nvim-navbuddy
+    <https://github.com/SmiteshP/nvim-navbuddy>. This feature might never be
+    supported in Outline.nvim because I personally feel that it is out of scope of
+    a "outline window" plugin, and to keep the codebase simple. If you don’t want
+    to install a second plugin for this feature, you should use Aerial.
+- **nvim-navic** <https://github.com/SmiteshP/nvim-navic>
+    nvim-navic gives you fully customizable breadcrumb section for you
+    winbar/statusline. However, as far as I am aware it only supports LSP. To have
+    other providers built-in you can try Aerial, or dropbar.nvim
+    <https://github.com/Bekaboo/dropbar.nvim>.
+- **nvim-navbuddy** <https://github.com/SmiteshP/nvim-navbuddy>
+    Miller columns popup for LSP navigation. Again as far as I know only LSP is
+    supported.
+- **dropbar.nvim** <https://github.com/Bekaboo/dropbar.nvim>
+    Clickable breadcrumbs section with support for many sources in addition to LSP.
+    However, it requires Neovim nightly as of writing.
+- **lspsaga** <https://github.com/nvimdev/lspsaga.nvim>
+    I’ve heard that this plugin gives you many features previously described all
+    in one plugin. However I have not used this myself so I cannot comment on it
+    more, other than it might only support LSP.
+- **glance.nvim** <https://github.com/DNLHC/glance.nvim>
+    Extremely interesting plugin that gives you a floating window for navigation
+    and quick-edits of locations provided by LSP. However it solves a different
+    problem to Outline.nvim: navigating references and definitions.
+- **navigator.lua** <https://github.com/ray-x/navigator.lua>
+    Unfortunately I have not used this myself, but it looks pretty good. It might
+    only support LSP.
+- **Treesitter (inspect/edit)**
+    The built-in treesitter module has a `:InspectTree` feature that can follow
+    your cursor around and let you jump to locations by navigating the tree.
+    Compared to Outline.nvim it may not be as customizable, but it uses treesitter
+    and can highlight entire ranges of symbols.
 
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