Add readme for more information about the ROMs

JPAJ - Patches/README.md

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+# Information about the ROMs
+
+## Egg Events
+As discussed in the video, each egg events have interal randomization, but there is the possibility to overrule it using button combinations. Below are all the combinations listed for each event.
+
+### PCNY Eggs
+- 0 → A: Chansey
+- 1 → B: Drowzee
+- 2 → A + B: Exeggcute
+- 3 → R: Farfetch’d
+- 4 → R + A: Kangaskhan
+- 5 → R + B: Lickitung
+
+### PCJP Eggs
+- 0 → A: Bellsprout
+- 1 → B: Meowth
+- 2 → A + B: Oddish
+- 3 → R: Poliwag
+
+### PokéPark Eggs
+- 0 → A: Cacnea
+- 1 → B: Corphish
+- 2 → A + B: Corsola
+- 3 → R: Igglybuff
+- 4 → R + A: Minun
+- 5 → R + B: Pichu
+- 6 → R + A + B: Plusle
+- 7 → L: Psyduck
+- 8 → L + A: Skitty
+- 9 → L + B: Spinda
+- 10 → L + A + B: Spoink
+- 11 → L + R: Surskit
+- 12 → L + R + A: Taillow
+- 13 → L + R + B: Whismur
+- 14 → L + R + A + B: Wynaut