refactor: frontmatter for markdown;

feat: plugin for rendering images in markdown;
feat: pastify;
feat: markdown preview in browser

nvim/lua/plugins/pastify.lua

@@ -0,0 +1,41 @@
+return {
+  'TobinPalmer/pastify.nvim',
+  cmd = { 'Pastify', 'PastifyAfter' },
+  config = function()
+    require('pastify').setup {
+      opts = {
+        absolute_path = false, -- use absolute or relative path to the working directory
+        apikey = '', -- Api key, required for online saving
+        local_path = '/assets/imgs/', -- The path to put local files in, ex <cwd>/assets/images/<filename>.png
+        save = 'local', -- Either 'local' or 'online' or 'local_file'
+        filename = function() return vim.fn.expand("%:t:r") .. '_' .. os.date("%H-%M-%S_%d.%m.Y") end, -- The file name to save the image as, if empty pastify will ask for a name
+        -- Example function for the file name that I like to use:
+        -- filename = function() return vim.fn.expand("%:t:r") .. '_' .. os.date("%Y-%m-%d_%H-%M-%S") end,
+        -- Example result: 'file_2021-08-01_12-00-00'
+        default_ft = 'markdown', -- Default filetype to use
+      },
+      ft = { -- Custom snippets for different filetypes, will replace $IMG$ with the image url
+        html = '<img src="$IMG$" alt="">',
+        markdown = '![]($IMG$)',
+        tex = [[\includegraphics[width=\linewidth]{$IMG$}]],
+        css = 'background-image: url("$IMG$");',
+        js = 'const img = new Image(); img.src = "$IMG$";',
+        xml = '<image src="$IMG$" />',
+        php = '<?php echo "<img src=\"$IMG$\" alt=\"\">"; ?>',
+        python = '# $IMG$',
+        java = '// $IMG$',
+        c = '// $IMG$',
+        cpp = '// $IMG$',
+        swift = '// $IMG$',
+        kotlin = '// $IMG$',
+        go = '// $IMG$',
+        typescript = '// $IMG$',
+        ruby = '# $IMG$',
+        vhdl = '-- $IMG$',
+        verilog = '// $IMG$',
+        systemverilog = '// $IMG$',
+        lua = '-- $IMG$',
+      },
+    }
+  end
+}