Added more comments and fixed one misspelling
Added more comments and fixed one misspelling

cornerbodega/JsBarcode,wavded/io-barcode,HospitalRun/JsBarcode,web2solutions/JsBarcode,lemaiyan/JsBarcode,luthfi401/JsBarcode,cornerbodega/JsBarcode,wavded/io-barcode,toddw/io-barcode,mabelticketing/JsBarcode,mabelticketing/JsBarcode,lemaiyan/JsBarcode,lindell/JsBarcode,vertexcs-suraj/JsBarcode,toddw/io-barcode,web2solutions/JsBarcode,luthfi401/JsBarcode,vertexcs-suraj/JsBarcode,lindell/JsBarcode