Update default_achievements.axp

Fixed some spelling errors

courses.dist/modelCourse/templates/achievements/default_achievements.axp

@@ -2,7 +2,7 @@
 02_crack_o_dawn, Crack O' Dawn, secret, Finish a homework set between 5AM and 7AM., 10, , crack_o_dawn.at, crack_o_dawn.png, 
 03_on_the_hour, Watching the Clock, secret, Finish a problem at the top of the hour., 10, , on_the_hour.at, on_the_hour.png, 
 04_last_minute, Last Minute Math, secret, Complete a homework within 30 minutes of the due date., 10, , last_minute.at, last_minute.png, 
-05_still_not_right, Its Still Not Right, secret, Input the exact same (incorrect) answer 10 times in a row., 5, , still_not_right.at, still_not_right.png, 
+05_still_not_right, It's Still Not Right, secret, Input the exact same (incorrect) answer 10 times in a row., 5, , still_not_right.at, still_not_right.png, 
 06_persistance, Persistence is not Futile, secret, Solve a problem after 20 incorrect submissions., 10, , persistance.at, persistance.png, 
 07_super_persistance, Green Never Looked So Good, secret, Solve a problem after 100 incorrect submissions., 10, , super_persistance.at, super_persistance.png, 
 08_super_speed_math, Careful Planning and Quick Fingers, secret, Spend less than 10 minutes entering answers to a homework set., 20, , super_speed_math.at, super_speed_math.png, 
@@ -17,7 +17,7 @@
 07_chipping_away, Just Keep Chipping Away, 01_one_timer, Work on a single homework set over the course of 48 hours., 10, , chipping_away.at, chipping_away.png, 
 08_speed_mather, Go Speed Math-er, 01_one_timer, Spend less than 1 hour working on a homework set., 10, , speed_mather.at, speed_mather.png, 
 09_three_in_a_row, Three in a Row, 01_one_timer, Complete 3 problems in a row with no incorrect answers., 10, 3, three_in_a_row.at, three_in_a_row.png, 
-10_on_fire, Your on Fire!, 01_one_timer, Complete 10 problems in a row with no incorrect answers., 20, 10, on_fire.at, on_fire.png, 
+10_on_fire, You're on Fire!, 01_one_timer, Complete 10 problems in a row with no incorrect answers., 20, 10, on_fire.at, on_fire.png, 
 01_complete_one_set, One Set Wonder, 03_complete_sets, Get 100% on one homework set., 10, , complete_one_set.at, complete_one_set.png, 
 02_complete_five_sets, High Five, 03_complete_sets, Get 100% on five homework sets., 10, 5, complete_five_sets.at, complete_five_sets.png, 
 03_complete_ten_sets, One For Each Finger, 03_complete_sets, Get 100% on ten homework sets., 10, 10, complete_ten_sets.at, complete_ten_sets.png,