add readme

Author: makevoid

Readme.md

@@ -0,0 +1,61 @@
+# EPISODE 03
+
+(maybe delete 01 and 02 and just publish this)
+
+code for the episode:
+
+```js
+
+const { readFileSync } = require('fs')
+const bitcoin = require('bitcore-lib')
+const { PrivateKey, Transaction } = bitcoin
+
+const pvtKeyString = readFileSync('./private-key.txt').toString().trim()
+const pvtKey = new PrivateKey(pvtKeyString)
+
+const address = pvtKey.toAddress().toString()
+
+console.log("private key:", pvtKey.toString())
+console.log("address:", address)
+
+// --- 6 lines
+
+// const getUTXOs = require('blockchain-api/get-utxos')
+const getUTXOs = require('./blockchain-api/get-utxos')
+
+;(async () => {
+  try {
+    let utxos = await getUTXOs({ address })
+
+    utxos = [ utxos[0] ]
+
+    console.log("utxos:", utxos)
+
+    const amount = 10000 // 10k sats (0.1mbtc)
+
+    const tx = new Transaction()
+      .from(utxos)
+      .to(address, amount)
+      .change(address)
+      .fee(1000)
+      .sign(pvtKey)
+
+    const txHex = tx.serialize()
+
+    console.log("tx:", txHex)
+
+    const { success, txHash } = pushTx(txHex)
+    console.log("success:", success, "txHash:", txHash)
+
+  } catch (err) {
+    console.error(err)
+  }
+})()
+
+```
+
+That's it - creating a private key and sending a bitcoin transaction in 30 lines of code - youtube video explainer #coding #bitcoin #tx #utxo #bitcoin-tx #bitcoin-utxo
+
+---
+
+@makevoid