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Commit
119bf57ab6de49a3e61b9200c917a6d30ac6f0ad
by joker.eph**Fix invalid math formulas in quantization doc

A single backslash is not properly escaped in the web documentation. We can make sure to escape for rendering subscripts.

Additionally, it also fixed the mal-formed equations in //"Affine to fixed point"// and //"Fixed point to affine"// sections. With this fix, the page is rendered as follows.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D101252