nsd first charpter
nsd complete
Update starting-activity.md

Intent 丢失首字母
Merge pull request #81 from jdneo/gh-pages

corrected some translation mistakes in chapter ---- OpenGL
Merge pull request #82 from naizhengtan/gh-pages

无线连接设备 翻译
Merge pull request #83 from ChaosTong/gh-pages

Update starting-activity.md
翻译创建功能测试完成
revising scale.md
Merge pull request #84 from huanglizhuo/gh-pages

翻译创建功能测试完成
Merge pull request #85 from Andrwyw/gh-pages

revising scale.md
Update Readme
Finished index.md
Merge remote-tracking branch 'upstream/gh-pages' into gh-pages
修改错别字。
Merge pull request #86 from xrayzh/gh-pages

Finished index.md page for tv ui design
Merge pull request #87 from shuiszhang/gh-pages

修改错别字。
corrected some translation mistakes in Chapter --- Cloud