AP_NavEKF3: Spell in coments

libraries/AP_NavEKF3/AP_NavEKF3_MagFusion.cpp

@@ -766,7 +766,7 @@ void NavEKF3_core::fuseEulerYaw()
         Tbn_zeroYaw.from_euler(euler321.x, euler321.y, 0.0f);
 
     } else {
-        // calculate observaton jacobian when we are observing a rotation in a 312 sequence
+        // calculate observation jacobian when we are observing a rotation in a 312 sequence
         float t9 = q0*q3;
         float t10 = q1*q2;
         float t2 = t9-t10;
@@ -808,7 +808,7 @@ void NavEKF3_core::fuseEulerYaw()
     Vector3f magMeasNED = Tbn_zeroYaw*magDataDelayed.mag;
 
     // Use the difference between the horizontal projection and declination to give the measured yaw
-    // If we can't use compass data, set the  meaurement to the predicted
+    // If we can't use compass data, set the  measurement to the predicted
     // to prevent uncontrolled variance growth whilst on ground without magnetometer
     float measured_yaw;
     if (use_compass() && yawAlignComplete) {
@@ -1119,7 +1119,7 @@ void NavEKF3_core::alignMagStateDeclination()
     }
 }
 
-// record a magentic field state reset event
+// record a magnetic field state reset event
 void NavEKF3_core::recordMagReset()
 {
     magStateInitComplete = true;