add nvim configs

.config/nvim/lua/plugins/crates.lua

@@ -0,0 +1,8 @@
+return {
+    'saecki/crates.nvim',
+    event = { "BufRead Cargo.toml" },
+    lazy = true,
+    config = function()
+        require('crates').setup()
+    end,
+}