docs: Fix text on span_join restrictions
Add missing not and fix typo.
Change-Id: I626e42b2095aaebf6de2b81d279e468c83880227
diff --git a/docs/analysis/trace-processor.md b/docs/analysis/trace-processor.md
index d054103..49e2f5e 100644
--- a/docs/analysis/trace-processor.md
+++ b/docs/analysis/trace-processor.md
@@ -291,7 +291,7 @@
WARNING: An important restriction on span joined tables is that spans from
the same table in the same partition *cannot* overlap. For performance
-reasons, span join does attempt to dectect and error out in this situation;
+reasons, span join does not attempt to detect and error out in this situation;
instead, incorrect rows will silently be produced.
### Ancestor slice
