chore: add WMATIC/USDT

Author: achilleas-kal

pyinjective/denoms_mainnet.ini

@@ -385,6 +385,15 @@ min_display_price_tick_size = 9.999999999999999e-05
 min_quantity_tick_size = 10000000
 min_display_quantity_tick_size = 0.1
 
+[0xb9a07515a5c239fcbfa3e25eaa829a03d46c4b52b9ab8ee6be471e9eb0e9ea31]
+description = 'Mainnet Spot WMATIC/USDT'
+base = 8
+quote = 6
+min_price_tick_size = 0.000001
+min_display_price_tick_size = 9.999999999999999e-05
+min_quantity_tick_size = 10000000
+min_display_quantity_tick_size = 0.1
+
 [0x4ca0f92fc28be0c9761326016b5a1a2177dd6375558365116b5bdda9abc229ce]
 description = 'Mainnet Derivative BTC/USDT PERP'
 base = 0