Fix typo

Author: hamdivazim-archive

README.md

@@ -21,7 +21,7 @@ reverse_string = usefulib.reverse_string(a_string)
 ```
 
 ## What can it do?
-usefulib is open-source and can be contributed to by anyone. Therefore, it offers a lot of simple functions to make writing code easier and quicker. A complete list of all fuctions usefulib provides can be found [here](https://github.com/hamdivazim/usefulib/blob/main/ALLFUNCTIONS.md).
+usefulib is open-source and can be contributed to by anyone. Therefore, it offers a lot of simple functions to make writing code easier and quicker. A complete list of all functions usefulib provides can be found [here](https://github.com/hamdivazim/usefulib/blob/main/ALLFUNCTIONS.md).
 
 ## Can I contribute?
 Want to contribute? You rock! Before you do, make sure to read the [contributing guidelines](https://github.com/hamdivazim/usefulib/blob/main/CONTRIBUTING.md) and you should have your PR merged!