Update tekton-poc/README.md

Co-authored-by: Nick Masluk <144150872+namasl@users.noreply.github.com>
Signed-off-by: Michael Kalantar <kalantar@us.ibm.com>

Author: kalantar

tekton-poc/README.md

@@ -21,7 +21,7 @@ Each Step is implemented by a Container in the Pod.
 
 ## Supported Benchmarking Use Cases
 
-Given a matrix of factors and values, measure performance of a model over a matrix of factors/values
+Given a matrix of factors and values, measure performance of a model over a matrix of factors/values.
 Factors may be model deployment related, such as: model, endpoint picker configuration, parallelism, ...
 Factors may also be workload related, for example: question_len, output_len,workload_profile, ...