Fix typo on the title and header

app.py

@@ -2,8 +2,8 @@ import streamlit as st
 import numpy as np
 import matplotlib.pyplot as plt
 
-st.title("Fitting simple models with JAX')
-st.header("A quadratric regression example')
+st.title('Fitting simple models with JAX')
+st.header('A quadratric regression example')
 
 number_of_observations = st.sidebar.slider('Number of observations', min_value=50, max_value=150, value=50)
 noise_standard_deviation = st.sidebar.slider('Standard deviation of the noise', min_value = 0.0, max_value=2.0, value=0.25)