add start/help command and update README

README.md

@@ -1,16 +1,24 @@
 # bitcoincash-explorer-bot
 This is a bot for interact with the BitcoinCash Blockchain from Telegram
 
-# Download e configuration
+# Download and configuration
+
+Binaries are available for some operating systems <a href="https://github.com/MarckTomack/bitcoincash-explorer-bot/releases">here</a>
+
+Extract the zip and add your token in config.json file.
+
+Then, run:
+`./bitcoincash-explorer-bot`
+
+
+# Build from source
 
 You need a <a href="https://golang.org/dl/">Go compiler</a>
 
 `git clone https://github.com/MarckTomack/bitcoincash-explorer-bot.git`
 
-Add your token to config.json
 
 ```
 cd bitcoincash-explorer-bot
 go build
-./bitcoincash-explorer-bot
 ```

main.go

@@ -29,6 +29,16 @@ import (
 
 const satoshi = 0.00000001
 
+func start(bot *tb.Bot) {
+	bot.Handle("/start", func(m *tb.Message) {
+		bot.Send(m.Sender, "This is a bot for the BitcoinCash Blockchain.\n"+
+			"You can use these commands:\n"+"\n"+
+			"/blockchainstatus\n"+
+			"/price\n"+"\n"+
+			"Or send an address or a transaction hash for check informations about it.")
+	})
+}
+
 func addressAndTransaction(bot *tb.Bot) {
 	bot.Handle(tb.OnText, func(m *tb.Message) {
 		addr, tx := m.Text, m.Text
@@ -166,6 +176,7 @@ func main() {
 	if err != nil {
 		log.Fatal(err)
 	}
+	start(bot)
 	addressAndTransaction(bot)
 	blockchainStatus(bot)
 	price(bot)