Add README.md for each new package

packages/abi-gen-wrappers/README.md

@@ -0,0 +1,73 @@
+## @0xproject/abi-gen-wrappers
+
+Low-level 0x smart contract wrappers generated using @0xproject/abi-gen. These
+low-level wrappers are imported by other packages in the 0x monorepo and
+application developers are not expected to import this package directly.
+
+You may also be interested in the
+[@0xproject/contract-wrappers](../contract-wrappers/README.md) package which
+includes some higher-level features.
+
+## Installation
+
+```bash
+yarn add @0xproject/abi-gen-wrappers
+```
+
+**Import**
+
+```typescript
+import * as wrappers from '@0xproject/abi-gen-wrappers';
+```
+
+or
+
+```javascript
+var wrappers = require('@0xproject/abi-gen-wrappers');
+```
+
+## Contributing
+
+We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
+
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
+
+### Install dependencies
+
+If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:
+
+```bash
+yarn config set workspaces-experimental true
+```
+
+Then install dependencies
+
+```bash
+yarn install
+```
+
+### Build
+
+To build this package and all other monorepo packages that it depends on, run the following from the monorepo root directory:
+
+```bash
+PKG=@0xproject/abi-gen-wrappers yarn build
+```
+
+### Clean
+
+```bash
+yarn clean
+```
+
+### Lint
+
+```bash
+yarn lint
+```
+
+### Run Tests
+
+```bash
+yarn test
+```

packages/contract-addresses/README.md

@@ -0,0 +1,68 @@
+## @0xproject/contract-addresses
+
+A tiny utility library for getting known deployed contract addresses for a
+particular network.
+
+## Installation
+
+```bash
+yarn add @0xproject/contract-addresses
+```
+
+**Import**
+
+```typescript
+import { getContractAddressesForNetwork } from '@0xproject/contract-addresses';
+```
+
+or
+
+```javascript
+var getContractAddressesForNetwork = require('@0xproject/contract-addresses').getContractAddressesForNetwork;
+```
+
+## Contributing
+
+We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
+
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
+
+### Install dependencies
+
+If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:
+
+```bash
+yarn config set workspaces-experimental true
+```
+
+Then install dependencies
+
+```bash
+yarn install
+```
+
+### Build
+
+To build this package and all other monorepo packages that it depends on, run the following from the monorepo root directory:
+
+```bash
+PKG=@0xproject/contract-addresses yarn build
+```
+
+### Clean
+
+```bash
+yarn clean
+```
+
+### Lint
+
+```bash
+yarn lint
+```
+
+### Run Tests
+
+```bash
+yarn test
+```

packages/contract-addresses/package.json

@@ -4,7 +4,7 @@
     "engines": {
         "node": ">=6.12"
     },
-    "description": "Addresses of deployed 0x contracts on Ethereum mainnet and testnets",
+    "description": "Used to get known addresses of deployed 0x contracts",
     "main": "lib/src/index.js",
     "directories": {
         "test": "test"

packages/contract-artifacts/README.md

@@ -0,0 +1,67 @@
+## @0xproject/contract-artifacts
+
+Smart contract compilation artifacts for the latest version of the 0x Protocol.
+
+## Installation
+
+```bash
+yarn add @0xproject/contract-artifacts
+```
+
+**Import**
+
+```typescript
+import * as artifacts from '@0xproject/contract-artifacts';
+```
+
+or
+
+```javascript
+var artifacts = require('@0xproject/contract-artifacts');
+```
+
+## Contributing
+
+We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
+
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
+
+### Install dependencies
+
+If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:
+
+```bash
+yarn config set workspaces-experimental true
+```
+
+Then install dependencies
+
+```bash
+yarn install
+```
+
+### Build
+
+To build this package and all other monorepo packages that it depends on, run the following from the monorepo root directory:
+
+```bash
+PKG=@0xproject/contract-artifacts yarn build
+```
+
+### Clean
+
+```bash
+yarn clean
+```
+
+### Lint
+
+```bash
+yarn lint
+```
+
+### Run Tests
+
+```bash
+yarn test
+```