chore(env): update .env TKO -> TTKOj (#128)

.env.sample

@@ -35,7 +35,7 @@ L1_ENDPOINT_WS=
 ENABLE_PROVER=false
 # How many provers you want to run concurrently, note that each prover will cost ~8 cores / ~16 GB memory.
 ZKEVM_CHAIN_INSTANCES_NUM=1
-# A L1 account private key (with a balance of TKO deposited on TaikoL1) which will be used to sign the bond for proving the block.
+# A L1 account private key (with a balance of TTKOj deposited on TaikoL1) which will be used to sign the bond for proving the block.
 # WARNING: only use a test account, pasting your private key in plain text here is not secure.
 L1_PROVER_PRIVATE_KEY=
 # Gas limit for proveBlock transactions (in gas)