Move scripts to scripts folder and update readme (#2331)

* Move scripts to scripts folder and update readme

* Update node-template/README.md

Co-Authored-By: xlc <xlchen1291@gmail.com>

* Update node-template/README.md

Co-Authored-By: xlc <xlchen1291@gmail.com>

* Update node-template/README.md

Co-Authored-By: xlc <xlchen1291@gmail.com>

* Update node-template/README.md

Co-Authored-By: xlc <xlchen1291@gmail.com>

* Update node-template/README.md

Co-Authored-By: xlc <xlchen1291@gmail.com>

* Update node-template/README.md

Co-Authored-By: xlc <xlchen1291@gmail.com>

* remove release flag

substrate/node-template/README.md

@@ -1,3 +1,68 @@
 # Template Node
 
 A new SRML-based Substrate node, ready for hacking.
+
+# Building
+
+Install Rust:
+
+```bash
+curl https://sh.rustup.rs -sSf | sh
+```
+
+Install required tools:
+
+```bash
+./scripts/init.sh
+```
+
+Build the WebAssembly binary:
+
+```bash
+./scripts/build.sh
+```
+
+Build all native code:
+
+```bash
+cargo build
+```
+
+# Run
+
+You can start a development chain with:
+
+```bash
+cargo run -- --dev
+```
+
+Detailed logs may be shown by running the node with the following environment variables set: `RUST_LOG=debug RUST_BACKTRACE=1 cargo run -- --dev`.
+
+If you want to see the multi-node consensus algorithm in action locally, then you can create a local testnet with two validator nodes for Alice and Bob, who are the initial authorities of the genesis chain that have been endowed with testnet units. Give each node a name and expose them so they are listed on the Polkadot [telemetry site](https://telemetry.polkadot.io/#/Local%20Testnet). You'll need two terminal windows open.
+
+We'll start Alice's substrate node first on default TCP port 30333 with her chain database stored locally at `/tmp/alice`. The bootnode ID of her node is `QmQZ8TjTqeDj3ciwr93EJ95hxfDsb9pEYDizUAbWpigtQN`, which is generated from the `--node-key` value that we specify below:
+
+```bash
+cargo run -- \
+  --base-path /tmp/alice \
+  --chain=local \
+  --alice \
+  --node-key 0000000000000000000000000000000000000000000000000000000000000001 \
+  --telemetry-url ws://telemetry.polkadot.io:1024 \
+  --validator
+```
+
+In the second terminal, we'll start Bob's substrate node on a different TCP port of 30334, and with his chain database stored locally at `/tmp/bob`. We'll specify a value for the `--bootnodes` option that will connect his node to Alice's bootnode ID on TCP port 30333:
+
+```bash
+cargo run -- \
+  --base-path /tmp/bob \
+  --bootnodes /ip4/127.0.0.1/tcp/30333/p2p/QmQZ8TjTqeDj3ciwr93EJ95hxfDsb9pEYDizUAbWpigtQN \
+  --chain=local \
+  --bob \
+  --port 30334 \
+  --telemetry-url ws://telemetry.polkadot.io:1024 \
+  --validator
+```
+
+Additional CLI usage options are available and may be shown by running `cargo run -- --help`.