* Translate challenge subtitles and example challenge text to Spanish
* Corrected errors in syntax and punctuation
* Multiple corrections of it/s to its plus other grammar corrections
* Correction and added paragraph to CSS Flex article
* Corrected my own typo
* Corrected capitalization, American spellings and typos
* Update index.md by fixing typos
Also, added section for learning about Depth-first searching and Breadth-first searching.
* Update index.md - reverting back to original verbiage.
Purposeful Programming
Rachita Bhagchandani
Prashanth Thiagarajan
S.Hale
Taylor
Mrugesh Mohapatra