Update chap3_GettingStartedWithR_full.md
改变图片名称大小写
correct the first second hidden photos of chp3
Merge pull request #4 from dandelion63/patch-2

改变图片名称大小写
almost complete.
completed.
completed.
Merge pull request #24 from flymark2010/develop

chap2 completed.
内容翻译完了
内容翻译完了
Merge branch 'develop' of https://github.com/kfeng123/data-science into develop
Merge pull request #25 from kfeng123/develop

Develop
complete the section 1
complete the section 1
complete the section 1
筛除放错位置的文件
correct it again
try again
try again
try again