Update Zenodo citation

Signed-off-by: Cole Ramos <colramos@amd.com>

README.md

@@ -47,11 +47,11 @@ style reference is provided below for convenience:
                   Karl W. Schulz and
                   Jose Santos and
                   Keith Lowery},
-  title        = {AMDResearch/omniperf: v1.0.7 (22 February 2023)},
-  month        = feb,
+  title        = {AMDResearch/omniperf: v1.0.8-PR1 (13 March 2023)},
+  month        = mar,
   year         = 2023,
   publisher    = {Zenodo},
-  version      = {v1.0.7},
+  version      = {v1.0.8-PR1},
   doi          = {10.5281/zenodo.7314631},
   url          = {https://doi.org/10.5281/zenodo.7314631}
 }