Update Docker example to use most recent LTS

[jamesmacfie]

Update Docker example to use most recent LTS version.

[jamesmacfie]

Looks like I missed a bunch of places where this is done, but this change may be moot given I just read through #2953

[XhmikosR]

Yeah, let's close this since the changes are being discussed in #2953.

[XhmikosR]

Scratch that, let's reopen this, this is a much smaller change and it might be easier to land than the other one.

[mkrawczuk]

I'd hold with merging it yet. I really think it's silly to bump the version with every stable Node release, given that the tutorial explicitly states to use the latest Node version.

Or at least add to the Node LTS release procedure to bump the version number in the tutorial, which in my opinion also sounds a little silly.

[willin]

LGTM

[SEWeiTung]

@jamesmacfie: Some notes：
1、There're some untranslated versions of LTS in the simplified Chinese, Japanese and Korean files, I've changed them together.
2、Add the comment for submitting.