docs: add in a minimal minimal example in the README

closes #651

README.md

@@ -41,6 +41,41 @@ _NOTE_: This plugin works without needing to install
 it installed for other languages, that's not a problem, but make sure you do not
 have Metals configured through `nvim-lspconfig` while using this plugin.[^no-lspconfig]
 
+## Absolute minimal example using [Lazy.nvim](https://github.com/folke/lazy.nvim)
+
+```lua
+{
+  "scalameta/nvim-metals",
+  dependencies = {
+    "nvim-lua/plenary.nvim",
+  },
+  ft = { "scala", "sbt", "java" },
+  opts = function()
+    local metals_config = require("metals").bare_config()
+    metals_config.on_attach = function(client, bufnr)
+      -- your on_attach function
+    end
+
+    return metals_config
+  end,
+  config = function(self, metals_config)
+    local nvim_metals_group = vim.api.nvim_create_augroup("nvim-metals", { clear = true })
+    vim.api.nvim_create_autocmd("FileType", {
+      pattern = self.ft,
+      callback = function()
+        require("metals").initialize_or_attach(metals_config)
+      end,
+      group = nvim_metals_group,
+    })
+  end
+}
+```
+
+**NOTE**: The above assumes you have your own attach function that sets up all
+your LSP mappings. It also doesn't make use of _any_ configuration. You'll
+likely want a more involved setup than this, so check out the full minimal
+example configuration link below.
+
 - You can find a full [minimal example configuration
     here](https://github.com/scalameta/nvim-metals/discussions/39).
 - You can find the full documentation with [`:help