markdown: restore marksman

Co-Authored-by: iGor milhit <igor@milhit.ch>

after/ftplugin/markdown.lua

@@ -1,8 +0,0 @@
--- Specific settings for markdown files
---   Use treesitter for folding
---   Disable the color column
-
--- vim.opt.foldmethod="expr"
--- vim.opt.foldexpr="nvim_treesitter#foldexpr()"
--- vim.g.markdown_folding=1
--- vim.opt.foldlevel=1

init.lua

@@ -487,12 +487,12 @@ local servers = {
   -- rust_analyzer = {},
   -- tsserver = {},
 
-  -- marksman = {
-  --   ft = {
-  --     'markdown',
-  --     'pandoc'
-  --   }
-  -- },
+  marksman = {
+    ft = {
+      'markdown',
+      'pandoc'
+    }
+  },
 
   lua_ls = {
     Lua = {