Confusing docs about unchecked exceptions decorators

[neonailol]

In the documentation of some classes, there this copied and pasted paragraph

 * <p>This class implements {@link Scalar}, which throws a checked
 * {@link Exception}. This may not be convenient in many cases. To make
 * it more convenient and get rid of the checked exception you can
 * use {@link UncheckedScalar} or {@link IoCheckedScalar} decorators.</p>

Which tells that to get rid of checked exception I can use IoCheckedScalar class,
but IoCheckedScalar throws a checked IOException, so maybe this text should be rephrased

Some examples:

cactoos/src/main/java/org/cactoos/scalar/HighestOf.java

Lines 46 to 49 in 80ed872

	* <p>This class implements {@link Scalar}, which throws a checked
	* {@link Exception}. This may not be convenient in many cases. To make
	* it more convenient and get rid of the checked exception you can
	* use {@link UncheckedScalar} or {@link IoCheckedScalar} decorators.</p>

cactoos/src/main/java/org/cactoos/scalar/Equals.java

Lines 33 to 36 in 80ed872

	* <p>This class implements {@link Scalar}, which throws a checked
	* {@link Exception}. This may not be convenient in many cases. To make
	* it more convenient and get rid of the checked exception you can
	* use {@link UncheckedScalar} or {@link IoCheckedScalar} decorators.</p>

cactoos/src/main/java/org/cactoos/scalar/And.java

Lines 69 to 72 in 80ed872

	* <p>This class implements {@link Scalar}, which throws a checked
	* {@link Exception}. This may not be convenient in many cases. To make
	* it more convenient and get rid of the checked exception you can
	* use {@link UncheckedScalar} or {@link IoCheckedScalar} decorators.</p>

[0crat]

@llorllale/z please, pay attention to this issue

[0crat]

@neonailol/z this project will fix the problem faster if you donate a few dollars to it; just click here and pay via Stripe, it's very fast, convenient and appreciated; thanks a lot!

[llorllale]

@neonailol see 8684193. Better now?

[neonailol]

@llorllale yes, looks good now

[0crat]

The job is not in WBS, won't close the order