Updated README.md with LICENSE file Link

[as8297]

Description of the Change

I have added the Link of LICENSE in the README.md file .

Alternate Designs

You should merge this PR because it make the README.md file more accurate.

Benefits

Reviewers will get easily know the type of License.

Possible Drawbacks

NONE

Applicable Issues

Without this the README.md file seems to be improper and incomplete.