update README for 1.3.0 release
Reformat code.
#4 : Add javadoc code examples for BigDecimalAssert.
#4 : Add javadoc code examples for BooleanArrayAssert.
#4 : Add javadoc code examples for ByteArrayAssert.
#4 : Add javadoc code examples for ByteAssert.
#4 : Add javadoc code examples for BigDecimalAssert.
#4 : Add javadoc code examples for CharArrayAssert.
#4 : Add javadoc code examples for CharSequenceAssert.
#4 : Add javadoc code examples for DateAssert.
#4 : Add javadoc code examples for DoubleArrayAssert.