[editorial] Fix alias in general/trace.md (#1805)

Author: chalin

docs/general/trace.md

@@ -1,6 +1,6 @@
 <!--- Hugo front matter used to generate the website version of this page:
 linkTitle: Trace
-aliases: [docs/specs/semconv/general/trace-general]
+aliases: [trace-general]
 --->
 
 # Trace Semantic Conventions