add more links to stories

See merge request csdn/intro-ossd!28

Master

See merge request csdn/intro-ossd!27

第一次课后，修复错误的链接和文字。

See merge request csdn/intro-ossd!26

new file:   chapters/.gitignore

See merge request csdn/intro-ossd!24

	modified:   chapters/1.md

Master

See merge request csdn/intro-ossd!23

fix error

增加了开源的领域知识

See merge request csdn/intro-ossd!22

new pptx

See merge request csdn/intro-ossd!21

New2

See merge request csdn/intro-ossd!20

update story

See merge request csdn/intro-ossd!19

modified:   chapters/1.md

See merge request csdn/intro-ossd!18

new file:   chapters/KenThompson.md

update files

See merge request csdn/intro-ossd!17

Master

See merge request csdn/intro-ossd!16

Master

See merge request csdn/intro-ossd!15

	modified:   plan/1.md

chapters/1.md

	modified:   plan/1.md

update chapter

See merge request !14

Master

See merge request !13