Update `README.md` in for releasing `v2.0.2`. (#100)

README.md

diff --git a/README.md b/README.md
index 2e1476c..8099464 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@
 

 | App Engine Go library            | Include in your project     | Correct goon version                                                   |

 |----------------------------------|-----------------------------|------------------------------------------------------------------------|

-| `google.golang.org/appengine/v2` |`github.com/mjibson/goon/v2` | [goon v2.0.1](https://github.com/mjibson/goon/releases/tag/v2.0.1)     |

+| `google.golang.org/appengine/v2` |`github.com/mjibson/goon/v2` | [goon v2.0.2](https://github.com/mjibson/goon/releases/tag/v2.0.2)     |

 | `google.golang.org/appengine`    |`github.com/mjibson/goon`    | [goon v1.1.0](https://github.com/mjibson/goon/releases/tag/v1.1.0)     |

 | `appengine`                      |`github.com/mjibson/goon`    | [goon v0.9.0](https://github.com/mjibson/goon/releases/tag/v0.9.0)     |

 | `cloud.google.com/go`            |N/A                          | Not supported ([issue #74](https://github.com/mjibson/goon/issues/74)) |