chore: Documentation links. (#112)

Author: kinyoklion

README.md

@@ -7,9 +7,9 @@ This repository contains beta software and should not be considered ready for pr
 
 ## Packages
 
-| SDK packages                                          | issues                                      | tests                                                   |
-|-------------------------------------------------------|---------------------------------------------|---------------------------------------------------------|
-| [libs/client-sdk](libs/client-sdk/README.md) | [C++ Client SDK][package-cpp-client-issues] | [![Actions Status][cpp-client-ci-badge]][cpp-client-ci] |
+| SDK packages                                          | issues                                      | tests                                                    | docs                     |
+|-------------------------------------------------------|---------------------------------------------|----------------------------------------------------------|--------------------------|
+| [libs/client-sdk](libs/client-sdk/README.md) | [C++ Client SDK][package-cpp-client-issues] | [![Actions Status][cpp-client-ci-badge]][cpp-client-ci]  |[![Documentation](https://img.shields.io/static/v1?label=GitHub+Pages&message=API+reference&color=00add8)](https://launchdarkly.github.io/cpp-sdks/libs/client-sdk/docs/html/)
 
 | Shared packages                                              | issues                                            | tests                                                                 |
 |--------------------------------------------------------------|---------------------------------------------------|-----------------------------------------------------------------------|

libs/client-sdk/README.md

@@ -5,6 +5,7 @@ This SDK is a beta version and should not be considered ready for production use
 visible.
 
 [![Actions Status](https://github.com/launchdarkly/cpp-sdks/actions/workflows/client.yml/badge.svg)](https://github.com/launchdarkly/cpp-sdks/actions/workflows/client.yml)
+[![Documentation](https://img.shields.io/static/v1?label=GitHub+Pages&message=API+reference&color=00add8)](https://launchdarkly.github.io/cpp-sdks/libs/client-sdk/docs/html/)
 
 The LaunchDarkly Client-Side SDK for C/C++ is designed primarily for use in desktop and embedded systems applications. It follows the client-side LaunchDarkly model for single-user contexts (much like our mobile or JavaScript SDKs). It is not intended for use in multi-user systems such as web servers and applications.