Trivial spacing tweak
diff --git a/WebAssembly.asciidoc b/WebAssembly.asciidoc
index 42440c5..1309793 100644
--- a/WebAssembly.asciidoc
+++ b/WebAssembly.asciidoc
@@ -133,7 +133,7 @@
 
 # Go WebAssembly talks
 
-* https://youtu.be/4kBvvk2Bzis[Building a Calculator with Go and WebAssembly](https://tutorialedge.net/golang/go-webassembly-tutorial/[Source code])
+* https://www.youtube.com/watch?v=4kBvvk2Bzis[Building a Calculator with Go and WebAssembly] (https://tutorialedge.net/golang/go-webassembly-tutorial/[Source code])
 * https://www.youtube.com/watch?v=iTrx0BbUXI4[Get Going with WebAssembly]