add examples on building responsive plots and custom HTML pages #380

Job	Run time
Clippy	3m 1s
semver	1m 30s
Build Wasm Examples (wasm-yew-minimal)	48s
Build Examples (3d_charts)	24s
Code Coverage	2m 1s
Rustfmt	11s
Build Examples (basic_charts)	28s
Tests (ubuntu-latest)	2m 14s
Build Examples (custom_controls)	44s
Tests (windows-latest)	3m 47s
Build Examples (financial_charts)	44s
Tests (macos-latest)	2m 3s
Build Examples (images)	44s
Build Examples (kaleido)	1m 22s
Build Examples (maps)	22s
Build Examples (ndarray)	22s
Build Examples (scientific_charts)	23s
Build Examples (shapes)	29s
Build Examples (subplots)	23s
	22m 0s

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