Update data source page

Author: ray310

docs/content/sources.md

@@ -22,4 +22,9 @@ hide_footer: true
 <br>
 ##### MTA Bridge and Tunnel Toll Data
 
-[https://data.ny.gov/Transportation/Hourly-Traffic-on-Metropolitan-Transportation-Auth/qzve-kjga/about_data]({{ "https://data.ny.gov/Transportation/Hourly-Traffic-on-Metropolitan-Transportation-Auth/qzve-kjga/about_data" | absolute_url }})
+[https://data.ny.gov/Transportation/Hourly-Traffic-on-Metropolitan-Transportation-Auth/qzve-kjga/about_data]({{ "https://data.ny.gov/Transportation/Hourly-Traffic-on-Metropolitan-Transportation-Auth/qzve-kjga/about_data" | absolute_url }})
+
+<br>
+##### NYC City Council District Shapefiles
+
+[https://data.cityofnewyork.us/City-Government/City-Council-Districts/yusd-j4xi]({{"https://data.cityofnewyork.us/City-Government/City-Council-Districts/yusd-j4xi" | absolute_url }})

docs/index.md

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 ---
 layout: page
 title: Analyzing New York City Vehicle Collisions
-description: Analysis of when and where New York City (NYC) vehicle collisions occur with a focus on collisions involving pedestrians and cyclists
+description: Analysis of when and where New York City (NYC) vehicle collisions (crashes) occur with a focus on collisions involving pedestrians and cyclists
 hide_hero: true
 ---
 # Analysis of New York City Vehicle Collisions