More typos.

Author: carlosalberto

specification/common/README.md

@@ -187,7 +187,7 @@ at this time, as discussed in
 ## Attribute Collections
 
 [Resources](../resource/sdk.md),
-[Instrumentation Scopes](../glossary.md#instrumentation-scope),
+[Instrumentation Scopes](#instrumentation-scope),
 [Metric points](../metrics/data-model.md#metric-points),
 [Spans](../trace/api.md#set-attributes), Span
 [Events](../trace/api.md#add-events), Span