update readme to remove mention of wasm feature flag (#278) #458

Job	Run time
Rustfmt	12s
Tests (ubuntu-latest)	1m 54s
Tests (windows-latest)	4m 41s
Code Coverage	9s
Build Examples (3d_charts)	26s
Tests (macos-latest)	1m 47s
Build Examples (basic_charts)	25s
semver	32s
Build Examples (custom_controls)	29s
Build Wasm Examples (wasm-yew-minimal)	56s
Clippy	3m 1s
Build Examples (financial_charts)	23s
Build Examples (images)	38s
Build Examples (kaleido)	1m 32s
Build Examples (maps)	28s
Build Examples (ndarray)	35s
Build Examples (scientific_charts)	24s
Build Examples (shapes)	23s
Build Examples (subplots)	28s
	19m 23s

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