Update docs

Author: twistedfall

docs/core.rs

@@ -22471,7 +22471,7 @@ pub mod core {
 		}
 
 		#[inline]
-		fn get(&self, i: i32) -> size_t {
+		unsafe fn get(&self, i: i32) -> size_t {
 			let ret = unsafe { sys::cv_MatStep_operator___const_int(self.as_raw_MatStep(), i) };
 			ret
 		}
@@ -22511,7 +22511,7 @@ pub mod core {
 		}
 
 		#[inline]
-		fn get_mut(&mut self, i: i32) -> size_t {
+		unsafe fn get_mut(&mut self, i: i32) -> size_t {
 			let ret = unsafe { sys::cv_MatStep_operator___int(self.as_raw_mut_MatStep(), i) };
 			ret
 		}