+ Clarify block quote termination and white space trimming. +
+A quotation is indicated by one or more lines with a byte stream beginning with a '>' (U+003E GREATER-THAN SIGN). + They are terminated by the first new line that is not followed by a + greater-than sign, or the end of the parent block (whichever comes + first). Block quotes may contain any child block, including other quotations. - Lines inside the block quote MUST have leading spaces trimmed before - parsing the child block. + Lines inside the block quote MUST have the first leading whitespace + character trimmed before parsing the child block. It is RECOMMENDED that text inside of a block quote be indented or distinguished from the surrounding text in some other way.