update: src/reference/reference.md

Author: netpyoung

src/reference/reference.md

@@ -1 +1,51 @@
 # 참고자료
+
+- <https://lispkorea.github.io>
+- [.gitignore](https://github.com/github/gitignore/blob/main/CommonLisp.gitignore)
+- [(lisp).pptx](https://docs.google.com/presentation/d/1WgYBPwqFD2w_PBi-1aC6RjjYXmD1hhtTga2cF6NO9_Q/edit?usp=sharing)
+
+
+## 문서
+
+- [CLiki - the common lisp wiki](https://www.cliki.net)
+- [CL Cookbook](https://lispcookbook.github.io/cl-cookbook/)
+- [Common Lisp Docs](https://lisp-docs.github.io/)
+- <https://github.com/CodyReichert/awesome-cl>
+- <https://common-lisp-libraries.readthedocs.io/>
+
+## Cheatsheet
+
+- [hyotang666/common-lisp-pitfalls](https://github.com/hyotang666/common-lisp-pitfalls)
+- [ashok-khanna/lisp-notes](https://github.com/ashok-khanna/lisp-notes)
+
+## 사전
+
+- [NovaSpec](https://novaspec.org/cl/)
+- [HyperSpec](https://www.lispworks.com/documentation/HyperSpec/)
+- [CL CommunitySpec (CLCS)](https://cl-community-spec.github.io/pages/index.html)
+  - ANSI Common Lisp specification draft
+- [Common Lisp Quick Reference](http://clqr.boundp.org/download.html)
+- <https://quickdocs.org/>
+
+## 코딩사이트
+
+- [exercism: common-lisp](https://exercism.org/tracks/common-lisp)
+- [kattis: common-lisp](https://open.kattis.com/languages/lisp)
+
+## 강좌 ( 무료 )
+
+- https://exercism.org/tracks/common-lisp/concepts
+
+## 강좌 ( 유료 )
+
+- [Common Lisp programming: from novice to effective developer](https://www.udemy.com/course/common-lisp-programming/)
+  - [by vindarel](https://github.com/vindarel)
+  - [src](https://github.com/vindarel/common-lisp-course-in-videos/)
+
+## Ref
+
+- <https://stevelosh.com/blog/2018/08/a-road-to-common-lisp/>
+- <https://corecursive.com/?search=lisp>
+- <https://european-lisp-symposium.org/>
+- https://qiita.com/tags/commonlisp
+- https://qiita.com/tags/lisp