Update README.md (#359)

jquense · web-flow · commit 220a3d280121 · 2018-06-27T20:29:15.000-04:00
diff --git a/README.md b/README.md
@@ -2,9 +2,9 @@
 
 > **ATTENTION!** To address many issues that have come up over the years, the API in v2 is not backwards compatible with the original [`React addon (v1-stable)`](https://github.com/reactjs/react-transition-group/tree/v1-stable).
 >
-> **For a drop-in replacement for `react-addons-transition-group` and `react-addons-css-transition-group`, use the v1 release, which is still actively maintained. Documentation and code for that release are available on the [`v1-stable`](https://github.com/reactjs/react-transition-group/tree/v1-stable) branch.**
+> **For a drop-in replacement for `react-addons-transition-group` and `react-addons-css-transition-group`, use the v1 release. Documentation and code for that release are available on the [`v1-stable`](https://github.com/reactjs/react-transition-group/tree/v1-stable) branch.**
 >
-> You can send pull requests with v1 bugfixes against the `v1-stable` branch.
+> We are no longer updating the v1 codebase, please upgrade to v2 when possible
 
 A set of components for managing component states (including mounting and unmounting) over time, specifically designed with animation in mind.
 

Original file line number	Diff line number	Diff line change
`@@ -2,9 +2,9 @@`
`2`	`2`
`3`	`3`	> ATTENTION! To address many issues that have come up over the years, the API in v2 is not backwards compatible with the original [`React addon (v1-stable)`](https://github.com/reactjs/react-transition-group/tree/v1-stable).
`4`	`4`	`>`
`5`		-> For a drop-in replacement for `react-addons-transition-group` and `react-addons-css-transition-group`, use the v1 release, which is still actively maintained. Documentation and code for that release are available on the [`v1-stable`](https://github.com/reactjs/react-transition-group/tree/v1-stable) branch.
	`5`	+> For a drop-in replacement for `react-addons-transition-group` and `react-addons-css-transition-group`, use the v1 release. Documentation and code for that release are available on the [`v1-stable`](https://github.com/reactjs/react-transition-group/tree/v1-stable) branch.
`6`	`6`	`>`
`7`		-> You can send pull requests with v1 bugfixes against the `v1-stable` branch.
	`7`	`+> We are no longer updating the v1 codebase, please upgrade to v2 when possible`
`8`	`8`
`9`	`9`	`A set of components for managing component states (including mounting and unmounting) over time, specifically designed with animation in mind.`
`10`	`10`