Add the word "set" to avoid misinterpretation in description (trekhleb#286)

* Add word to avoid misinterpretation

* Rename the CI workflow file.

Co-authored-by: Sagid Magomedov <sagid-m@yandex-team.ru>
Co-authored-by: Oleksii Trekhleb <trehleb@gmail.com>

Author: 3 people

src/algorithms/math/is-power-of-two/README.md

@@ -12,7 +12,7 @@ the number can't be a power of two.
 
 **Bitwise solution**
 
-Powers of two in binary form always have just one bit.
+Powers of two in binary form always have just one bit set.
 The only exception is with a signed integer (e.g. an 8-bit
 signed integer with a value of -128 looks like: `10000000`)