close #14284 document semantics for start for re,nre; improve examples#14483

Merged

Araq merged 1 commit intonim-lang:develfrom timotheecour:pr_close_14284_re_start_semantics

May 28, 2020

+175-196

Commits on May 28, 2020

close nim-lang#14284 document semantics for start for re,nre; improve examples
timotheecour
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