*added xcm testing guide

docs/XCMTestingGuide.md

@@ -0,0 +1,62 @@
+# Societal Node Cumulus/XCM Testing Guide
+
+## Launch Rococo Local Testnet
+
+- Please refer to the [Run Local Rococo Testnet with Societal Node Parachains](../README.md#run-local-rococo-testnet-with-societal-node-parachains) section of the README
+
+## Register Societal Parachain - Para ID 2000
+
+- Connect to Alice validator Relay Chain: `https://cloudflare-ipfs.com/ipns/dotapps.io/?rpc=ws%3A%2F%2Flocalhost%3A9944#/explorer`
+
+- Go to `Developer --> Extrinsics` section and select `parasSudoWrapper --> sudoScheduleParaInitialize(id, genesis)`
+
+- Use `2000` as parachain `id` and set `parachain` to `true.
+
+- Use [para-2000-genesis-state](../examples/para-2000-genesis-state) file as `genesisHead`
+
+- Use [para-2000-wasm](../examples/para-2000-wasm) file as `validationCode`
+
+- Go to `Network --> Parachains` section and wait for ~2 minutes to check whether the 2000 chain is in the `Parachains` list
+
+-  Connect to Societal Parachain(2000): `https://cloudflare-ipfs.com/ipns/dotapps.io/?rpc=ws%3A%2F%2Flocalhost%3A9954#/explorer`
+
+- Go to `Network --> Explorer` and check that blocks are produced and finalized
+
+## Register 2nd Parachain - Para ID 2001
+
+- Basically the same steps as in previous steps but different genesis/wasm files taking part
+
+- Connect to Alice validator Relay Chain: `https://cloudflare-ipfs.com/ipns/dotapps.io/?rpc=ws%3A%2F%2Flocalhost%3A9944#/explorer`
+
+- Go to `Developer --> Extrinsics` section and select `parasSudoWrapper --> sudoScheduleParaInitialize(id, genesis)`
+
+- Use `2001` as parachain `id` and set `parachain` to `true.
+
+- Use [para-2001-genesis-state](../examples/para-2001-genesis-state) file as `genesisHead`
+
+- Use [para-2001-wasm](../examples/para-2001-wasm) file as `validationCode`
+
+- Go to `Network --> Parachains` section and wait for ~2 minutes to check whether the 2001 chain is in the `Parachains` list
+
+-  Connect to Societal Parachain(2000): `https://cloudflare-ipfs.com/ipns/dotapps.io/?rpc=ws%3A%2F%2Flocalhost%3A9955#/explorer`
+
+- Go to `Network --> Explorer` and check that blocks are produced and finalized
+
+## Open HRMP Channel from Parachain 2000 to 2001
+
+- Refer to the [Open message passing channels](https://docs.substrate.io/tutorials/build-a-parachain/open-message-passing-channels/) section of Polkadot documentation
+
+- Use the following sovereign accounts for Parachains connected:
+
+```
+ParaId 2000 - 5Ec4AhPUwPeyTFyuhGuBbD224mY85LKLMSqSSo33JYWCazU4 
+ParaId 2001 - 5Ec4AhPV91i9yNuiWuNunPf6AQCYDhFTTA4G5QCbtqYApH9E 
+```
+
+- Please make sure you open bi-directional HRMP channel completing the guide from the previous step for both 2000 and 2001 parachains.
+
+- Check whether the HRMP channels are opened in both directions:
+
+<img src="images/xcm/Screenshot 2023-04-18 at 16.43.43.png" width="600" style="padding-left: 50px;">
+
+- Make sure assets can be transferred via HRMP channel using the Polkadot tutorial doc: [Transfer assets with XCM](https://docs.substrate.io/tutorials/build-a-parachain/transfer-assets-with-xcm/)