Update task.md
Grammar, spelling, and some clarifications
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# Find color in the format #abc or #abcdef
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Write a regexp that matches colors in the format `#abc` or `#abcdef`. That is: `#` followed by 3 or 6 hexadimal digits.
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Write a RegExp that matches colors in the format `#abc` or `#abcdef`. That is: `#` followed by 3 or 6 hexadecimal digits.
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Usage example:
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```js
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alert( str.match(reg) ); // #3f3 #AA0ef
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```
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P.S. Should be exactly 3 or 6 hex digits: values like `#abcd` should not match.
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P.S. This should be exactly 3 or 6 hex digits: values like `#abcd` should not match.
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