Added a Visual Basic book. (#4945)
* Added Arduino books. * Added pdf annotation to a book. * Added a book. * Removed trademark symbol. * Revert "Removed trademark symbol." This reverts commit d8f975f38cfd8d11696b61910cf05316e5ba9480. * Removed Registered trademark symbol. * Revert "Added Arduino books." This reverts commit 5718d13540a4cbe1001b9aee64d3f34b5251cddc. * Swapped books to set alphabetical order. * Update free-programming-books.md
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