Update README.md

README.md

@@ -539,7 +539,7 @@ The documentation for releases and `main` are available here:
   Other versions
   </summary>
 
-* [1.15.0](https://pointfreeco.github.io/swift-composable-architecture/1.15.0/documentation/composablearchitecture/) ([migration guide](https://pointfreeco.github.io/swift-composable-architecture/main/documentation/composablearchitecture/migratingto1.15))
+  * [1.15.0](https://pointfreeco.github.io/swift-composable-architecture/1.15.0/documentation/composablearchitecture/) ([migration guide](https://pointfreeco.github.io/swift-composable-architecture/main/documentation/composablearchitecture/migratingto1.15))
   * [1.14.0](https://pointfreeco.github.io/swift-composable-architecture/1.14.0/documentation/composablearchitecture/) ([migration guide](https://pointfreeco.github.io/swift-composable-architecture/main/documentation/composablearchitecture/migratingto1.14))
   * [1.13.0](https://pointfreeco.github.io/swift-composable-architecture/1.13.0/documentation/composablearchitecture/) ([migration guide](https://pointfreeco.github.io/swift-composable-architecture/main/documentation/composablearchitecture/migratingto1.13))
   * [1.12.0](https://pointfreeco.github.io/swift-composable-architecture/1.12.0/documentation/composablearchitecture/) ([migration guide](https://pointfreeco.github.io/swift-composable-architecture/main/documentation/composablearchitecture/migratingto1.12))