Merge branch 'development' into extractDocs

* development:
  Added base-contract package to README
  Update yarn.lock
  Improve README
  Feedback
  README on derivation path
  Use our dev seed derivation path.
  README
  Add ledger-node package as optional dependency
  Force shouldGetChainCode to true in types
  Nuke tests for now
  Remove old ledger
  Update ledgerco packages
  Remove only
  Fix a typo
  Add PR name
  Improve an error message when an inorrect number of constructor params is passed

1 files changed, 1 insertions, 0 deletions

diff --git a/README.md b/README.md
index 70eff0c2d..170ed69a6 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,7 @@ This repository is a monorepo including the 0x protocol smart contracts and nume
 | [`web3-typescript-typings`](/packages/web3-typescript-typings)                         | [![npm](https://img.shields.io/npm/v/web3-typescript-typings.svg)](https://www.npmjs.com/package/web3-typescript-typings)                         | Web3 typescript typings                                            |
 | [`@0xproject/abi-gen`](/packages/abi-gen)                                              | [![npm](https://img.shields.io/npm/v/@0xproject/abi-gen.svg)](https://www.npmjs.com/package/@0xproject/abi-gen)                                   | Tool to generate TS wrappers from smart contract ABIs              |
 | [`@0xproject/assert`](/packages/assert)                                                | [![npm](https://img.shields.io/npm/v/@0xproject/assert.svg)](https://www.npmjs.com/package/@0xproject/assert)                                     | Type and schema assertions used by our packages                    |
+| [`@0xproject/base-contract`](/packages/base-contract)                                  | [![npm](https://img.shields.io/npm/v/@0xproject/base-contract.svg)](https://www.npmjs.com/package/@0xproject/base-contract)                       | BaseContract to derive all auto-generated wrappers from            |
 | [`@0xproject/connect`](/packages/connect)                                              | [![npm](https://img.shields.io/npm/v/@0xproject/connect.svg)](https://www.npmjs.com/package/@0xproject/connect)                                   | A Javascript library for interacting with the standard relayer api |
 | [`@0xproject/dev-utils`](/packages/dev-utils)                                          | [![npm](https://img.shields.io/npm/v/@0xproject/dev-utils.svg)](https://www.npmjs.com/package/@0xproject/dev-utils)                               | Dev utils to be shared across 0x projects and packages             |
 | [`@0xproject/json-schemas`](/packages/json-schemas)                                    | [![npm](https://img.shields.io/npm/v/@0xproject/json-schemas.svg)](https://www.npmjs.com/package/@0xproject/json-schemas)                         | 0x-related json schemas                                            |