LitElement & lit-html release update

[arthurevans]

What's changed, or what was fixed?
It's a new update! For lit-html and LitElement!

Target Live Date: 2019-02-05

Trying to coordinate several items for release, please don't push this live without me.

• This has been reviewed and approved by @kaycebasques
• I have run npm test locally and all tests pass.
• I have added the appropriate type-something label.
• I've staged the site and manually verified that my content displays correctly.

Q: What the heck is a type-something label?

CC: @petele

[arthurevans]

Warning #1 is the word "nodes" and is not a typo for Node.

Warning #2 should be fixed now...

[arthurevans]

#1, as explained before, not a typo.
#2, Material Design matches the usage in the devsite style guide & the Material Design site so not sure why it's wrong. I think this guidance might have changed at some point ...

[WebFundBot]

Whoops!

There were 2 warnings that will prevent this PR from being merged. Please take a look, and either fix, or provide a justification for why they can't be fixed.

WARNINGS
src/content/en/updates/2019/02/lit-element-and-lit-html.md#L61 - Common typo found: 'node' Should it be 'Node'?
src/content/en/updates/2019/02/lit-element-and-lit-html.md#L113 - Common typo found: 'Material Design' Should it be 'material design'?

[rictic]

type-something is probably a set of PR labels in GitHub?

[kaycebasques]

LGTM

[arthurevans]

Thanks @kaycebasques !

[WebFundBot]

🎉 This has been pushed live to https://developers.google.com/web/