* Updated free-programming-books-langs.md
book 1 - A Complete Guide to Standard C++ Algorithms
license: CC-BY-NC-SA
found "This work may be distributed and/or modified under the conditions of the CC-BY-NC-SA license"
on page 4/116
book 2 - C++ GUI Programming with Qt 3
license: OPl
found "This material may only be distributed subject to the terms and conditions set forth in the
Open Publication License, v1.0 or later"
on page 4/464
book 3 - C++ Notes for Professionals
license: CC BY-SA
found " the content is written by the beautiful people at Stack Overflow.
Text content is released under Creative Commons BY-SA"
on page 19/708
* fixed recommended changes
* Apply suggestions from code review
Co-authored-by: Eric Hellman <eric@hellman.net>
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Co-authored-by: Eric Hellman <eric@hellman.net>
07b62fc66c