docs-bug(Card): Add card examples

[amitport]

Documentation Feedback

Currently, there is only a single example in the card documentation. The component has tons of sub-elements and options, the examples should be a lot more comprehensive as is with other UI libraries. (generally, lack of examples in the Material documentation renders the site less than helpful).

Affected documentation page: Insert a link to the affected page on material.angular.io
https://material.angular.io/components/card/examples

[rameshworsht]

I would love to contribute the example to the angular materials similar to the examples on the dev app. Can you please assing this to me?

[pavankalyan-codes]

I Would love to contribute to this issue. Can you please assign this issue to me @crisbeto

[crisbeto]

There's a PR for this already.

[jacobgtzmtz]

Hi, I would like to contribute, would you assign me this issue? @jacobgtzmtz

[rameshworsht]

@crisbeto can you please close this issue.

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