[khmr/km] Spelling mistakes

[KFS-Typography]

Comment on http://r12a.github.io/scripts/khmr/

ហ្វ៊ីស៉ិក

៉ muusiketoan (mouse teeth/batoc piir diacritic) combined with any top vowels ិ ី ឹ ឺ ើ gets the bok choeng (collision foot) ុ below the consonant or subscript coeng. Not every font renders this correctly.

This is spelled incorrectly because ស is already a-series consonant and it doesn’t get modified by ៉, only by ៊ to make ស៊-so + any top vowel ិ ី ឹ ឺ ើ also causes the Triisap to shift into the ុ form.

ឫស្សី - bamboo

A better example you can use for ឬ (or)