Chore : Readme수정, api query색 명 변경

Author: eungyeole

README.md

@@ -17,3 +17,14 @@
 ```
 [![Velog's GitHub stats](https://velog-readme-stats.vercel.app/api?name=eungyeole&tag=github)](https://github.com/eungyeole/velog-readme-stats)
 
+## 카드색 바꾸기 최신글 가져오기
+> Option : ```&color```
+
+Color Option 
+* black
+```
+[![Velog's GitHub stats](https://velog-readme-stats.vercel.app/api?name=eungyeole&color=black)](https://github.com/eungyeole/velog-readme-stats)
+```
+[![Velog's GitHub stats](https://velog-readme-stats.vercel.app/api?name=eungyeole&tag=github)](https://github.com/eungyeole/velog-readme-stats)
+
+

api/index.js

@@ -4,11 +4,11 @@ const fetchPost = require('../src/fetchers/post-fetcher');
 
 
 module.exports = async (req, res) => {
-    const { name, tag, background } = req.query;
+    const { name, tag, color } = req.query;
     res.setHeader('Content-Type', 'image/svg+xml');
     try{
         const post = await fetchPost(name, tag);
-        return res.send(background==='dark' ? createCardDark(post) : createCard(post))
+        return res.send(color==='dark' ? createCardDark(post) : createCard(post))
     } catch(e){
         return res.send(e.message)
     }