Update 01_index.markdown to fix bad image path to silver table diagram

Author: rjurney

01_index.markdown

@@ -57,7 +57,9 @@ background: home/bg.png
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-            <img style="width: 70%;" alt="Transformed, Cleaned Data in Silver Tables" src="assets/slides/Entity-Resolution-Phase-1-Silver-ETL.pngEntity-Resolution-Phase-1-Silver-ETL.png" />
+            <img style="width: 70%;" alt="
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+                                          " src="assets/slides/Entity-Resolution-Phase-1-Silver-ETL.png" />
         <div style="margin-top: 3%;"></div>
         <h3>Entity Resolution (ER): Node and Edge Deduplication</h3>
         <div>