algos

Could we add some data validation functions such as,
make upper case,
make lower case,
get random double,
get random int?

Now that we are getting started to move at a good pace, we need to have this repo formatted properly. The requirements are as follows:

• Different directories for different concepts (for ex- all sorting algorithms in one directory, all searching algorithms in another)
• A more robust and appealing README file
• A dedicated directory for learning resources or notes to help beginners grow t