prepare 8.1.5 release (#217)

## [8.1.5] - 2023-08-14
### Changed:
- Loosened the requirements on the semver package. (Thanks,
[hauntsaninja](#216)!)

---------

Co-authored-by: Eli Bishop <eli@launchdarkly.com>
Co-authored-by: LaunchDarklyCI <dev@launchdarkly.com>
Co-authored-by: Ben Woskow <48036130+bwoskow-ld@users.noreply.github.com>
Co-authored-by: LaunchDarklyCI <LaunchDarklyCI@users.noreply.github.com>
Co-authored-by: hroederld <hroeder@launchdarkly.com>
Co-authored-by: Robert J. Neal <rneal@launchdarkly.com>
Co-authored-by: Robert J. Neal <robertjneal@users.noreply.github.com>
Co-authored-by: Ember Stevens <ember.stevens@launchdarkly.com>
Co-authored-by: ember-stevens <79482775+ember-stevens@users.noreply.github.com>
Co-authored-by: Matthew M. Keeler <keelerm84@gmail.com>
Co-authored-by: charukiewicz <charukiewicz@protonmail.com>
Co-authored-by: LaunchDarklyReleaseBot <launchdarklyreleasebot@launchdarkly.com>
Co-authored-by: Christian Charukiewicz <christian@foxhound.systems>
Co-authored-by: Matthew M. Keeler <mkeeler@launchdarkly.com>
Co-authored-by: Ben Woskow <bwoskow@launchdarkly.com>
Co-authored-by: Gavin Whelan <gwhelan@launchdarkly.com>
Co-authored-by: Elliot <35050275+Apache-HB@users.noreply.github.com>
Co-authored-by: Gabor Angeli <gabor@squareup.com>
Co-authored-by: Elliot <apachehaisley@gmail.com>
Co-authored-by: Louis Chan <lchan@launchdarkly.com>
Co-authored-by: prpnmac <95777763+prpnmac@users.noreply.github.com>
Co-authored-by: Louis Chan <91093020+louis-launchdarkly@users.noreply.github.com>

Author: 15 people

.circleci/config.yml

@@ -52,7 +52,7 @@ jobs:
       - image: <<parameters.docker-image>>
       - image: redis
       - image: amazon/dynamodb-local
-      - image: consul
+      - image: hashicorp/consul
     steps:
       - checkout
       - run: python --version

README.md

@@ -7,7 +7,7 @@
 
 ## LaunchDarkly overview
 
-[LaunchDarkly](https://www.launchdarkly.com) is a feature management platform that serves over 100 billion feature flags daily to help teams build better software, faster. [Get started](https://docs.launchdarkly.com/home/getting-started) using LaunchDarkly today!
+[LaunchDarkly](https://www.launchdarkly.com) is a feature management platform that serves trillions of feature flags daily to help teams build better software, faster. [Get started](https://docs.launchdarkly.com/home/getting-started) using LaunchDarkly today!
 
 [![Twitter Follow](https://img.shields.io/twitter/follow/launchdarkly.svg?style=social&label=Follow&maxAge=2592000)](https://twitter.com/intent/follow?screen_name=launchdarkly)
 
@@ -21,7 +21,7 @@ Refer to the [SDK reference guide](https://docs.launchdarkly.com/sdk/server-side
 
 ## Learn more
 
-Check out our [documentation](http://docs.launchdarkly.com) for in-depth instructions on configuring and using LaunchDarkly. You can also head straight to the [complete reference guide for this SDK](http://docs.launchdarkly.com/docs/python-sdk-reference).
+Read our [documentation](http://docs.launchdarkly.com) for in-depth instructions on configuring and using LaunchDarkly. You can also head straight to the [complete reference guide for this SDK](http://docs.launchdarkly.com/docs/python-sdk-reference).
 
 Generated API documentation is on [readthedocs.io](https://launchdarkly-python-sdk.readthedocs.io/en/latest/).