add render-markdown plugin

Author: petervlk

lua/custom/plugins/render-markdown.lua

@@ -0,0 +1,9 @@
+return {
+  'MeanderingProgrammer/render-markdown.nvim',
+  dependencies = { 'nvim-treesitter/nvim-treesitter', 'echasnovski/mini.nvim' }, -- if you use the mini.nvim suite
+  -- dependencies = { 'nvim-treesitter/nvim-treesitter', 'echasnovski/mini.icons' }, -- if you use standalone mini plugins
+  -- dependencies = { 'nvim-treesitter/nvim-treesitter', 'nvim-tree/nvim-web-devicons' }, -- if you prefer nvim-web-devicons
+  ---@module 'render-markdown'
+  ---@type render.md.UserConfig
+  opts = {},
+}