Fix SPI badges (#18)

Author: finestructure

README.md

@@ -1,5 +1,5 @@
-[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Fordo-one%2Fpackage-histogram%2Fbadge%3Ftype%3Dswift-versions)](https://swiftpackageindex.com/ordo-one/package-histogram)
-[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Fordo-one%2Fpackage-histogram%2Fbadge%3Ftype%3Dplatforms)](https://swiftpackageindex.com/ordo-one/package-histogram)
+[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2FHdrHistogram%2Fhdrhistogram-swift%2Fbadge%3Ftype%3Dswift-versions)](https://swiftpackageindex.com/HdrHistogram/hdrhistogram-swift)
+[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2FHdrHistogram%2Fhdrhistogram-swift%2Fbadge%3Ftype%3Dplatforms)](https://swiftpackageindex.com/HdrHistogram/hdrhistogram-swift)
 [![codecov](https://codecov.io/gh/ordo-one/package-histogram/branch/main/graph/badge.svg?token=o6efZbwgoD)](https://codecov.io/gh/ordo-one/package-histogram)
 [![Swift address sanitizer](https://github.com/ordo-one/package-histogram/actions/workflows/swift-sanitizer-address.yml/badge.svg)](https://github.com/ordo-one/package-histogram/actions/workflows/swift-sanitizer-address.yml)
 [![Swift thread sanitizer](https://github.com/ordo-one/package-histogram/actions/workflows/swift-sanitizer-thread.yml/badge.svg)](https://github.com/ordo-one/package-histogram/actions/workflows/swift-sanitizer-thread.yml)