Fixed spelling mistake in custom span example. (#643)

b-deam · beniwohli · commit ae14201992ca · 2020-01-14T09:36:15.000+01:00
diff --git a/docs/api.asciidoc b/docs/api.asciidoc
@@ -307,7 +307,7 @@ def coffee_maker(strength):
 
     with elasticapm.capture_span('near-to-machine', labels={"type": "arabica"}):
         insert_filter()
-        for i in range(strengh):
+        for i in range(strength):
             pour_coffee()
 
         start_drip()
