Bug - grammatical error in README.md

[ayushrakesh]

I have noticed one grammatical mistake in inside section "Visual Programming"

"MicroCode is a icon-based" should be "MicroCode is an icon-based"

Please assign this task to me.

[carlosperate]

Thanks @ayushrakesh! If you are happy to create a PR we can merge it right away :)

[hemangtk]

Hey @carlosperate i can see that this issue isn't fixed yet could you please assign me this issue so that I can fix it right away

[hemangtk]

Hey @carlosperate just fixed the issue
please do give it quick check let me know if theres any more changes required,
also is it possible to label the issue under hacktober-fest?
Thank you!!

[carlosperate]

Thanks @hemangtk and @ayushrakesh! This has been implemented in #634.