Add readme

README.md

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+# knot.nvim
+knot.nvim is a plugin for [Neovim](https://neovim.io/) that provides a way to view and edit DNS records using [knot](https://www.knot-dns.cz/) via [knotctl](https://code.smolnet.org/micke/knotctl).
+
+## Installation
+With [lazy.nvim](https://github.com/folke/lazy.nvim):
+```lua
+  {
+    "https://code.smolnet.org/micke/knot.nvim.git",
+    dependencies = {
+      "nvim-telescope/telescope.nvim",
+    },
+    config = function()
+      require("telescope").load_extension('telescope_knot')
+    end,
+  },
+
+```
+## Dependencies
+You need to have [knotctl](https://code.smolnet.org/micke/knotctl) installed and configured on your system.
+If knotctl works for you in your terminal, it should work in this plugin as well.
+
+## Usage
+This plugin provides a Telescope picker for viewing and editing DNS records. You can summon it with:
+```vim
+:Telescope telescope_knot
+```
+
+or add a mapping:
+```vim
+nnoremap <leader>k :Telescope telescope_knot<cr>
+```
+