code spell checking - part1 (core)

I've found a code spellchecker, so this is what can be corrected easily. Changes are only affecting comments, readme and a few user-visible strings. So no functional impact expected.

wled00/data/settings_wifi.htm

@@ -34,7 +34,7 @@
 				).reduce(
 					// Filter out duplicate SSIDs. Since it is sorted by signal
 					// strength, the strongest signal will be kept in the
-					// order it orginally appeared in the array.
+					// order it as originally appeared in the array.
 					(unique, other) => {
 						if(!unique.some(obj => obj.ssid === other.ssid)) {
 							unique.push(other);