Rewrite paragraph in 'match' to be more concise and readable. Start

Rewrite paragraph in 'match' to be more concise and readable. Start
correcting use of ':' in sentences.
The colon `:` should be used only when the sentence preceeding it is a
complete sentence. If this is not the case, then a `;` should be used;
this denotes that the following fragment is a part of the previous
fragment.