added .env.copy

src/helpers/.env.copy

@@ -0,0 +1,16 @@
+## mainnet (comment the following if you want to switch to devnet)
+PRIVATE_KEY = YOUR_PRIVATE_KEY
+## devnet (un-comment the following if you want to switch to devnet)
+#PRIVATE_KEY = YOUR_PRIVATE_KEY 
+
+# recommend to use https://dev.helius.xyz/rpcs/my
+# or https://shyft.to/dashboard/overview
+DEVNET_ENDPOINT = YOUR_RPC_DEVNET_ENDPOINT
+MAINNET_ENDPOINT = YOUR_RPC_MAINNET_ENDPOINT
+# please get the api key in https://shyft.to/dashboard/overview
+SHYFT_API_KEY = YOUR_SHYFT_API_KEY
+# recommend to use 0.00009
+# specify the fee for jito if you want to land your transaction faster
+JITO_FEE = "0.001"
+TAKE_PROFIT = 0.1 # sell when price up 10%
+STOP_LOST = 0.2 # sell when price down 20%