[SQUASH ME] Added Splash Figure

Author: AlexandreSinger

doc/src/tutorials/timing_analysis/index.rst

@@ -11,7 +11,13 @@ not support all timing constraints and does not provide a TCL interface to allow
 you to directly interrogate the timing graph. VPR also has limited support for
 multi-clock timing analysis, which tools like OpenSTA have better support for.
 
-A user flow which would use this would perform the following steps:
+.. _fig_timing_analysis_design_cycle:
+
+.. figure:: timing_analysis_design_cycle.png
+
+    Timing analysis design cycle flow diagram.
+
+A user design cycle which would use this would perform the following steps:
     1. Run VPR with the timing commands it can support.
     2. Perform timing analysis on the resulting netlist using OpenSTA with
        more complex timing commands.