message: Recommend the use of Bazelisk as a wrapper for Bazel.
  Expand the Getting Started tip into its own section and break out the
  remainder of the text into an Overview section.
diff: 1. [Introduction](#introduction)
  2. [Getting started](#getting-started)
  +3. [Overview](#overview)
  3. [Current status](#current-status)
  4. [Learn more](#learn-more)
  5. [Contact and mailing list](#contact-and-mailing-list)
  @@ -39,10 +40,19 @@ at [Real World Crypto 2019](https://rwc.iacr.org/2019/).
  ## Getting started
  -**TIP** The easiest way to get started with Tink is to install
  -[Bazel](https://docs.bazel.build/versions/master/install.html), then build, run
  -and play with the [`hello world
  -examples`](https://github.com/google/tink/tree/master/examples/helloworld).
  +Tink primarily uses [Bazel](https://bazel.build) to manage building and testing
  +the project.
  +
  +The recommended way to get started with Tink is to use
  +[Bazelisk](https://github.com/bazelbuild/bazelisk). This tool is developed by
  +the Bazel team and makes it easy to ensure usage of a version of Bazel that's
  +compatible with the project.
  +
  +As a starting point, the [`hello world
  +examples`](https://github.com/google/tink/tree/master/examples/helloworld)
  +demonstrate performing simple tasks using Tink in a variety of languages.
  +
  +## Overview
  Tink performs cryptographic tasks via so-called [primitives](docs/PRIMITIVES.md),
  each of which is defined via a corresponding interface that specifies the
  