fix: typo

src/calculator.py

@@ -11,7 +11,7 @@ from src.constants import PROMPTS
 
 def calculator_mode():
 
-    st.expander("How to Use this calculator", expanded = False).markdown(HOW_TO_TEXT)
+    st.expander("How to use this calculator?", expanded = False).markdown(HOW_TO_TEXT)
 
     with st.container(border=True):
         df = load_models(filter_main=True)

src/content.py

@@ -33,7 +33,7 @@ INTRO_TEXT = """
 HOW_TO_TEXT = """
 Chose a provider, a model and an example of usage (prompts). 
 
-1.The calculator will provide you estimates of environmental impacts of this example. To learn more about how these impacts are computed check the Methodology tab.
+1. The calculator will provide you estimates of environmental impacts of this example. To learn more about how these impacts are computed check the Methodology tab.
 
 2. You can then check for equivalences of these impacts.