add info about plot axis + trendlines

app.py

@@ -174,12 +174,20 @@ with gr.Blocks(
     gr.Markdown(
         """
         <div style="text-align: center; max-width: 650px; margin: auto;">
-            <h1 style="font-weight: 900; margin-top: 5px;">🔬 Progress Tracker: Open vs. Proprietary LLMs 🔬
-            </h1>
+            <h1 style="font-weight: 900; margin-top: 5px;">🔬 Progress Tracker: Open vs. Proprietary LLMs 🔬</h1>
             <p style="text-align: left; margin-top: 5px; margin-bottom: 30px; line-height: 20px;">
             This app visualizes the progress of proprietary and open-source LLMs over time as scored by the <a hfref="https://leaderboard.lmsys.org/">LMSYS Chatbot Arena</a>.
             The idea is inspired by <a href="https://www.linkedin.com/posts/maxime-labonne_arena-elo-graph-updated-with-new-models-activity-7187062633735368705-u2jB">this great work</a> 
             from <a href="https://huggingface.co/mlabonne/">Maxime Labonne</a>, and is intended to stay up-to-date as new models are released and evaluated.
+            <div style="text-align: left;">
+            <strong>Plot info:</strong>
+            <br>
+            <ul style="padding-left: 20px;">
+                <li> The ELO score (y-axis) is a measure of the relative strength of a model based on its performance against other models in the arena. </li>
+                <li> The Release Date (x-axis) corresponds to when the model was first publicly released or when its ELO results were first reported (for ease of automated updates). </li>
+                <li> Trend lines are based on Ordinary Least Squares (OLS) regression and adjust based on the filter criteria. </li>
+            <ul>
+            </div>
             </p>
         </div>
         """