Changes

<tr><td>[[File:qsort_set1.png|300px|thumb|left|alt qsort_set1]]</td><tdbr>Recursive calling parallel_qsort of spawning parallel_qsort in the first parallel_qsort function which main thread has responible for</td></tr><tr><td>[[File:qsort_set2.png|300px|thumb|left|alt qsort_set2]]<br>The moment right after a spawning thread works in second parallel_qsort calling which Main Thread had finished</td></tr><tr><td></td><td></td></tr>