Emhasize quotes in API doc

api/README.md

@@ -77,7 +77,7 @@ POST /quotes
 curl --request POST --header 'X-Quotes-API-Key: SECRET_KEY' --data 'id=28&date=2018-01-01&game=IRL&text=Cheese?' 'https://tld.example/api/quotes'
 ```
 
-Note: the quote is replaced if it exists already
+*Note: the quote is replaced if it exists already*
 
 Parameters:
 
@@ -97,7 +97,7 @@ PUT /quotes/:id
 curl --request PUT --header 'X-Quotes-API-Key: SECRET_KEY' --data 'date=2018-01-01&game=IRL&text=Cheese?' 'https://tld.example/api/quotes/28'
 ```
 
-Note: the quote is created if it doesn't exist yet
+*Note: the quote is created if it doesn't exist yet*
 
 Parameters: