docs: fix roadmap todo

Author: nelsonmestevao

README.md

@@ -3,33 +3,39 @@
 Code generator that ingest a OpenAPI Specification and writes the structs that represent resources of that given specification and also builds the client based on the paths.
 
 Currently supports two types of generation:
-* Tesla - Generates a module with a Tesla client
-* Req - Generates a module using Req
+
+* [Tesla](https://hexdocs.pm/tesla/readme.html) - Generates a module with a Tesla client.
+* [Req](https://hexdocs.pm/req/readme.html) - Generates a module using Req.
 
 By default we're using Jason for encoding and decoding of strucs
 
 Does not require you to install extra dependencies as we're using
 
 ## Roadmap
-[] - Support XML specification parsing
-[] - Support Inheritance and Polymorphism
-[] - Add typespecs to generated Strucs
-[] - Add typespecs to Client
-[] - Generate tests for Client
+
+- [] Support YAML specification parsing
+- [] Support Inheritance and Polymorphism
+- [] Add typespecs to generated Strucs
+- [] Add typespecs to Client
+- [] Generate tests for Client
 
 ## Installation
+
 Install it using:
-```
+
+```sh
 mix do local.rebar --force, local.hex --force
 mix escript.install hex openapi_codegen
 ```
 
 ## Usage
 
 Generating a Tesla client using PetStore example:
+
 `openapi_codegen --tesla --output-path lib openapi_petstore.json`
 
 Generating a Req client using PetStore example:
+
 `openapi_codegen --req --output-path lib openapi_petstore.json`
 
 This examples will generate your code in your folder `lib` and also create a `lib/components` with all the structs.