Update READMEs (paritytech#564)

ethereum/README.md

@@ -4,12 +4,9 @@ This directory contains smart contracts utilized by the Polkadot-Ethereum Bridge
 
 ## Development
 
-Make sure you use a recent node version, e. g. with [nvm](https://github.com/nvm-sh/nvm#installing-and-updating):
-
-```bash
-nvm install 14.16.1
-nvm use 14.16.1
-```
+Requirements:
+* Node 14 LTS. See installation [instructions](https://www.digitalocean.com/community/tutorials/how-to-install-node-js-on-ubuntu-20-04#option-3-%E2%80%94-installing-node-using-the-node-version-manager).
+* Yarn
 
 Install dependencies with yarn:
 

parachain/README.md

@@ -25,8 +25,8 @@ Refer to the instructions at the
 
 To add context to the above instructions, the parachain is known to compile with the following versions of Rust:
 
-- stable: 1.51.0
-- nightly: 1.53.0-nightly
+- stable: 1.58
+- nightly: 1.60.0-nightly
 
 ### Build
 
@@ -57,17 +57,6 @@ cargo build --release
 cd -
 ```
 
-Launch Polkadot and the parachain:
-
-```bash
-cd -
-polkadot-launch config.json
-```
-
-It will take about 1-2 minutes for the parachain to start producing blocks.
-
-The parachain will output logs to `200.log`.
-
 ## Configuration
 
 Note: This section is not necessary for local development, as there are scripts to auto-configure the parachain.

relayer/README.md

@@ -13,6 +13,7 @@ Relayer service that streams transactions from blockchain networks, packages dat
 
 This project requires the following tools for day to day development:
 
+- [Golang](https://go.dev/)
 - [Mage](https://magefile.org/): Used for build tasks
 - [Revive](https://github.com/mgechev/revive): Used for linting instead of golint
 

test/README.md

@@ -18,11 +18,10 @@ The E2E tests run against local deployments of the parachain, relayer and ganach
   (cd ../ethereum && yarn install)
   ```
 
-* Development environment for the relay services. See relayer [requirements](../relayer/README.md#development).
-* `timeout` - native package on Ubuntu, on macOS try ```brew install coreutils```
+* Development environment for the relay services. See setup [instructions](../relayer/README.md#development).
 * `jq` - https://stedolan.github.io/jq/download/
 * geth - https://geth.ethereum.org/docs/install-and-build/installing-geth
-* sponge - Is available in the moreutils package. On Mac see https://formulae.brew.sh/formula/moreutils. On Linux:
+* sponge - Is available in the `moreutils` package.
 
   ```bash
   apt install moreutils
@@ -31,11 +30,17 @@ The E2E tests run against local deployments of the parachain, relayer and ganach
 * polkadot-launch
 
   ```bash
-yarn global add [email protected]
+  yarn global add [email protected]
   ```
 
 ## Setup
 
+### Install NPM dependencies
+
+```bash
+yarn install
+```
+
 ### Polkadot
 
 * Clone the polkadot repository somewhere on your machine
@@ -51,7 +56,7 @@ cargo build --release
 
 ### Configure testnet
 
-Create an `.env` file with variables that point to the binary for polkadot
+Create an `.env` file, and set the `POLKADOT_BIN` variable to the location of the polkadot binary built in the previous step.
 
 Example:
 ```
@@ -65,7 +70,7 @@ Run the following script
 scripts/start-services.sh
 ```
 
-Wait until the "System has been initialized" message
+Wait until the "Testnet has been initialized" message
 
 Go to polkadot-js and wait until the parachain has started producing blocks:
 https://polkadot.js.org/apps/?rpc=ws%3A%2F%2F127.0.0.1%3A11144#/explorer
@@ -84,19 +89,7 @@ The `start-services.sh` script writes the following logs:
 
 ## E2E tests
 
-### Setup
-
-Download dependencies:
-
-```bash
-yarn install
-```
-
-You should now be good to go!
-
-## Run Tests
-
-### Integration Tests
+Run the tests using the following command:
 
 ```bash
 yarn test