add some sort code
add git ignore file
update git ignore file
add insertion sort animation slide
update latest update time
add file info
add bubble sort animation slide
add selection sort
add merge sort
add merge sort animation slide
finish auto test script
add natural merge sort
move temperal output to /tmp
add range control
add animation of natural merge sort
modify names of some variables
add quick sort
add bubble sort for linked list
add insertion sort for linked list
add select sort for linked list