Update README.md

Author: dmrschmidt

README.md

@@ -220,7 +220,7 @@ https://user-images.githubusercontent.com/69365/127739821-061a4345-0adc-4cc1-bfd
 Migration
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 ### In 13.0.0
-* Any mentions of `dampening` & similar were corrected to `damping` etc in [11460b8b](https://github.com/dmrschmidt/DSWaveformImage/commit/11460b8b8203f163868ba774d1533116d2fe68a1). Most notably in `Waveform.Configuration`. See #64. 
+* Any mentions of `dampening` & similar were corrected to `damping` etc in [11460b8b](https://github.com/dmrschmidt/DSWaveformImage/commit/11460b8b8203f163868ba774d1533116d2fe68a1). Most notably in `Waveform.Configuration`. See [#64](https://github.com/dmrschmidt/DSWaveformImage/issues/64). 
 
 ### In 12.0.0
 * The rendering pipeline was split out from the analysis. You can now create your own renderes by subclassing [`WaveformRenderer`](https://github.com/dmrschmidt/DSWaveformImage/blob/main/Sources/DSWaveformImage/Renderers/WaveformRenderer.swift).