feat: Better documentation

Author: codingconcepts

README.md

@@ -13,26 +13,20 @@ Wrap Go's stdlib `http.HandlerFunc` using `errhandler.Wrap()`:
 
 ```go
 mux := http.NewServeMux()
-mux.Handle("GET /products/{id}", errhandler.Wrap(getProduct))
+mux.Handle("GET /products", errhandler.Wrap(addProduct))
 ```
 
-Update your existing handler signature, by adding an `error` return type:
+Update your existing handler signature, by adding an `error` return type and utilizing the optional `errhandler.ParseJSON` and `errhandler.SendJSON` helper functions to reduce the amount of boilerplate code handlers require:
 
 ```go
 func addProduct(w http.ResponseWriter, r *http.Request) error {
-	...
-}
-```
+	var p product
+  if err := errhandler.ParseJSON(r, &p); err != nil {
+    return fmt.Errorf("parsing request json: %w", err)
+  }
 
-Utilize the `ParseJSON` and `SendJSON` functions to reduce the amount of boilerplate code handlers require:
+  products[p.ID] = p
 
-``` go
-var p product
-if err := errhandler.ParseJSON(r, &p); err != nil {
-  return fmt.Errorf("parsing request json: %w", err)
+  return errhandler.SendJSON(w, p)
 }
-
-products[p.ID] = p
-
-return errhandler.SendJSON(w, p)
 ```