feat: json2go (#130)

* feat(json2go): implement

* feat(json2go): support manual input

* chore(readme): add json2go

* chore(docs): add docs

README.md

@@ -62,6 +62,7 @@ Requirements:
   - [impl](https://github.com/josharian/impl)
   - [gotests](https://github.com/cweill/gotests)
   - [iferr](https://github.com/koron/iferr)
+  - [json2go](https://github.com/olexsmir/json2go)
 </details>
 
 <details>
@@ -185,6 +186,24 @@ Requirements:
   ```
 </details>
 
+<details>
+  <summary>
+    <b>Convert json to Go types</b>
+  </summary>
+
+  ![Convert JSON to Go types](./vhs/json2go.gif)
+
+  `:GoJson` opens a temporary buffer where you can paste or write JSON.
+  Saving the buffer (`:w` or `:wq`) automatically closes it and inserts the generated Go struct into the original buffer at the cursor position.
+
+  Alternatively, you can pass JSON directly as an argument:
+  ```vim
+  :GoJson {"name": "Alice", "age": 30}
+  ```
+
+  Additionally, `gopher.json2go` provides lua api, see `:h gopher.nvim-json2go` for details.
+</details>
+
 
 <details>
   <summary>
@@ -253,6 +272,15 @@ require("gopher").setup {
     -- e.g: `message = 'fmt.Errorf("failed to %w", err)'`
     message = nil,
   },
+  json2go = {
+    -- command used to open interactive input.
+    -- e.g: `split`, `botright split`, `tabnew`
+    interactive_cmd = "vsplit",
+
+    -- name of autogenerated struct
+    -- e.g: "MySuperCoolName"
+    type_name = nil,
+  },
 }
 ```