[FIX] z -> s

tabs/tab0_welcome.py

@@ -19,7 +19,7 @@ def render_tab():
     """, unsafe_allow_html=True)
 
     st.warning("""
-    While the tool offers multiple customization parameters and allows you to iterate on the results, it can never capture the full nuance and specificity of the resources and their availability in every single country.\n
+    While the tool offers multiple customisation parameters and allows you to iterate on the results, it can never capture the full nuance and specificity of the resources and their availability in every single country.\n
     The results of the optimisation tool must therefore not be considered as final or complete. Users should use the results as a basis and refine the final CDR portfolios manually to account for the information/context not captured in the model.
     """,
     icon=":material/warning:",
@@ -45,7 +45,7 @@ def render_tab():
 
     <h3 class="wt wt-4">Explore:</h3>
     <ol start="5">
-        <li><b>Sensitivity analysis</b>: analyze how changes in method caps or resource availability affect the portfolio.</li>
+        <li><b>Sensitivity analysis</b>: analyse how changes in method caps or resource availability affect the portfolio.</li>
         <li><b>Scenario comparison</b>: compare different scenarios based on the optimisation results.</li>
     </ol>