Exercise: count words from file

Given a text file like this one:

{% embed include file="src/examples/count-words-from-file/words_and_spaces.txt)

• Print out a report how many times each word appears.
• Disregard case of the letters.
• Show them in order of frequency.

words_and_spaces.txt
ad 13
labor 10
dolor 6
in 6
ut 5
lorem 5
qui 3
sint 3
dolore 2
commodo 2
eu 1
incididunt 1
tempor 1
reprehenderit 1
proident 1
ipsum 1
occaecat 1