Fixed some small bugs.

[hewenning]

The TTF label font sample code is incorrect.

[slackmoehrle]

You fixed some of these same items already: https://github.com/cocos2d/cocos2d-x-docs/pull/258 and it was merged. Did you forget to re-pull?

[hewenning]

这次修改的地方是关于UI组件，Label中的TTF字体的示例代码的错误。

[slackmoehrle]

But you are submitting some of the same changes as before. Why?

You submitted this: https://github.com/cocos2d/cocos2d-x-docs/pull/258 and notice the files you changed:

Now, in this PR you are submitting some of the same changes AGAIN.

Even though your previous PR was merged into master already.

I don't understand why you are doing this. You should have cut a new branch from master before submitting your LabelTTF changes.

[hewenning]

Sorry, I used this feature for the first time.

[slackmoehrle]

It is OK. I'll merge over this time.

The normal work flow is something like:

git checkout master
git pull origin master
git checkout -b (some_branch_called_something)
(make your changes)
git add (some files)
git commit -m 'some message' (some files)
git push -u (your upstream) (some_branch_called_something)

then create the PR

next time you repeat these same steps first.

[hewenning]

OK，I am sorry to bring you trouble, thank you.