Update Scheme syntax for real numbers

[jcubic]

According to R7RS spec, you can use different mnemonics
for the scientific notation that indicated the precision of the number.

Just found about this in section 6.2.4 of R7RS spec where it says:

Implementations may provide more than one representation of floating-point numbers with differing precisions.

I was testing in Chicken, Kawa, Gambit, and Gauche implementations all of them support different precision mnemonics for real numbers.

[github-actions]

JS File Size Changes (gzipped)

A total of 1 files have changed, with a combined diff of +4 B (+0.2%).

file	master	pull	size diff	% diff
components/prism-scheme.min.js	1.63 KB	1.64 KB	+4 B	+0.2%

Generated by 🚫 dangerJS against 0523534

[jcubic]

I'm not sure why some builds failed.

[RunDevelopment]

The change itself LGTM.

The build failed because you also have to commit the minified scheme file. Run npm run build to update the minified file and then commit it.

Also, could you please add a test for this? You can learn more about tests here.
The TLDR; is that you insert the code snippet you want to test into the tet file and run npm run test:languages -- --update.

[jcubic]

Added min.js file and unit tests.

[RunDevelopment]

Thank you for contributing @jcubic!