Update app.py

app.py

@@ -11,7 +11,7 @@ intro = f"""
 <p>Please note that we focus on getting the service up and running, but not the maintenance that follows.🚀</p>
 """
 contribution = f"""
-<p>If you want to <strong>contribute to the calculator</strong> by adding your own AI service option, follow this <a href="https://huggingface.co/spaces/mithril-security/TCO_calculator/blob/main/How_to_contribute.md">tutorial</a> 👈. </p>
+<p>If you want to contribute to the calculator by <strong>adding your own AI service option</strong>, follow this <a href="https://huggingface.co/spaces/mithril-security/TCO_calculator/blob/main/How_to_contribute.md">tutorial</a> 👈. </p>
 """
 formula = r"""
 $CR = \frac{CIT_{1K} \times IT + COT_{1K} \times OT}{1000}$  <br>