Stucked in Bash profile

i cant understand why i am stucked in this section. write code like as manual. but i cant finish No.2 instruction

so i do instruction No. 3
there is error that can`t not find alias pd and pwd

could you tell me about my mistakes??

It looks like you are still in nano. It looks like you saved the file, but did you exit nano?

try to take the spaces out of your second line

You have

alias pd = "pwd" 

Instead try

alias pd="pwd"