update format of summary report

Makefile

diff --git a/Makefile b/Makefile
index 91d1396..6390a58 100644
--- a/Makefile
+++ b/Makefile
@@ -332,10 +332,10 @@
 	@$(MAKE) -C $(TIMING_ROOT) -f $(TIMING_ROOT)/timing.mk caravel-timing-typ -j3
 	@$(MAKE) -C $(TIMING_ROOT) -f $(TIMING_ROOT)/timing.mk caravel-timing-fast -j3
 	@$(MAKE) -C $(TIMING_ROOT) -f $(TIMING_ROOT)/timing.mk caravel-timing-slow -j3
-	@echo ===================================================Summary===================================================
+	@echo =============================================Summary=============================================
 	@find $(PROJECT_ROOT)/signoff/caravel/openlane-signoff/timing/*/ -name "summary.log" | head -n1 \
-		| xargs tail -n2 | head -n1
+		| xargs tail -n3 | head -n2
 	@find $(PROJECT_ROOT)/signoff/caravel/openlane-signoff/timing/*/ -name "summary.log" \
 		| xargs -I {} tail -n1 "{}"
-	@echo =============================================================================================================
+	@echo =================================================================================================
 	@echo "You can find results for all corners in $(CUP_ROOT)/signoff/caravel/openlane-signoff/timing/"