forkmegithub과 a태그 겹치는 issue (ref #27, #30) (#44)

* forkmegithub과 a태그 겹치는 issue (ref #27)

* Update assets/css/website.css

Co-Authored-By: YeonJuan <[email protected]>

* gitbook-cli dependency 추가, script 수정

Co-authored-by: YeonJuan <[email protected]>

Author: guyeol

Diff for: assets/css/website.css

@@ -0,0 +1,4 @@
+.navigation {
+  top: 50%;
+  height: 100px;
+}

Diff for: book.json

@@ -21,5 +21,8 @@
     "analytics": {
       "google": "UA-163809183-2"
     }
+  },
+  "styles": {
+    "website": "assets/css/website.css"
   }
 }