Update src/blocking/i2c.rs

Co-authored-by: Daniel Egger <[email protected]>

Author: eldruin

src/blocking/i2c.rs

@@ -139,7 +139,7 @@ pub enum Operation<'a> {
 
 /// Transactional I2C interface.
 ///
-/// This allows combining operation within an I2C transaction.
+/// This allows combining operations within an I2C transaction.
 pub trait Transactional {
     /// Error type
     type Error;