add code snippet to fix link

bmorelli25 · bmorelli25 · commit 12af705fa475 · 2019-03-15T11:01:59.000-07:00
diff --git a/docs/span-api.asciidoc b/docs/span-api.asciidoc
@@ -54,7 +54,7 @@ the following are standardized across all Elastic APM agents:
 [[span-start]]
 ==== `span.start()`
 
-deprecated[1.1.0,Span started automatically by <<apm-start-span,apm.startSpan()>>]
+deprecated[1.1.0,Span started automatically by `<<apm-start-span,apm.startSpan()>>`]
 
 [source,js]
 ----
