update a migration rails code example

toaster example bootstrap 4 tkinter open image without pil code example prefix discord.py code example make and download ssh key ubuntu server code example transform rotation code example how to change font inside placeholder code example find 1 month ago date from current date using moment javascript code example next router useRoute options code example docker variables in dockerfile code example react ternary operator without else code example python replace element in list code example bubble sort for unsorted ll code example