Fix typos in podcast (#449)

Author: Tritlo

podcast/56/links.markdown

@@ -3,10 +3,10 @@
 * [Groq](https://groq.com/)
 * [Lava (Xilinix)](https://raintown.org/lava/ )
 * [Kubernetes](https://kubernetes.io/)
-* [FP caste](https://fpcastle.com/)
+* [FP castle](https://fpcastle.com/)
 * [Miranda](https://www.cs.kent.ac.uk/people/staff/dat/miranda/)
-* [Bluespec](https://bluespec.com/)
-* [Dagstuh](https://www.dagstuhl.de/en/seminars/dagstuhl-seminars)
+* [BlueSpec](https://bluespec.com/)
+* [Dagstuhl](https://www.dagstuhl.de/en/seminars/dagstuhl-seminars)
 * [Arran (scottish island)](https://www.visitarran.com/)
-* [BBC micro](https://en.wikipedia.org/wiki/BBC_Micro)
+* [BBC Micro](https://en.wikipedia.org/wiki/BBC_Micro)
 * [Lagavulin 16](https://www.malts.com/en-gb/products/lagavulin-16-year-old-single-malt-scotch-whisky-70cl)