update readme

README.md

@@ -39,6 +39,17 @@ require("gopher").setup {
     impl = "impl",
     iferr = "iferr",
   },
+  gotests = {
+    -- gotests tag to install from
+    tag = "@latest",
+    -- gotests doesn't have template named "default" so this plugin uses "default" to set the default template
+    template = "default",
+    -- path to a directory containing custom test code templates
+    template_dir = nil,
+    -- switch table tests from using slice to map (with test name for the key)
+    -- works only with gotests installed from develop branch
+    named = false,
+  },
 }
 ```