Doesn't support installing `mlp` with for example `pipx install markdown_live_preview`

[tuurep]

I think the plugin is needlessly strict on how the main program is installed, my first instinct was to use:

pipx install markdown_live_preview

(https://github.com/pypa/pipx)

I tried a quick hack like this:

diff --git a/lua/mdpreview/init.lua b/lua/mdpreview/init.lua
index 5a73b19..45c65b0 100644
--- a/lua/mdpreview/init.lua
+++ b/lua/mdpreview/init.lua
@@ -43,15 +43,9 @@ local function find_suitable_port()
 end

 M.preview_open = function(bufnr)
-    local python = get_python()
-    if python == nil then
-        vim.notify("mdpreview: Python installation not found", vim.log.levels.ERROR)
-        return
-    end
-
-    vim.fn.system({python, "-m", "markdown_live_preview", "-h"})
-    if vim.v.shell_error ~= 0 then
-        vim.notify("mdpreview: mlp not installed. Try ':lua require('mdpreview').install_mlp()'", vim.log.levels.WARN)
+    vim.fn.system({ "mlp", "-h" })
+    if vim.v.shell_error ~= 0 then
+        vim.notify("mdpreview: mlp not installed. Try 'pipx install markdown_live_preview'", vim.log.levels.WARN)
         return
     end

@@ -62,7 +56,7 @@ M.preview_open = function(bufnr)
         end
     end

-    local opts = { python, "-m", "markdown_live_preview"}
+    local opts = { "mlp" }
     if not M.config.follow then table.insert(opts, "--no-follow") end
     if not M.config.browser then table.insert(opts, "--no-browser") end
     if not M.config.localhost_only then opts:append(opts, "--open") end

And looks like that about does the trick. Let me know if you're interested in getting this implemented more properly.