fix bug in documentation
there was fault for `uint32_t NVIC_GetEnableIRQ(IRQn_Type IRQn)` function documentation that fixed.
@@ -482,7 +482,7 @@ void NVIC_EnableIRQ(IRQn_Type IRQn);
\returns
- 0 Interrupt is not enabled
- - 1 Interrupt is pending
+ - 1 Interrupt is enabled
\remarks
- IRQn must not be negative.
