Blog photos update (#913)

* changed hero and thumb photos to Carlyn's recommendations

* remove spaces

* rename image files

* changed proportions on flash_hero img

Author: Ananya-Joshi

content/blog/2023-12-20-changepoint_explore.Rmd

@@ -9,12 +9,10 @@ tags:
 authors:
   - tara
   - ajoshi
-heroImage: changepoint-hero.png
-heroImageThumb: changepoint-blog.png
-
+heroImage: changepoint-hero.jpg
+heroImageThumb: changepoint-thumb.png
 summary: | 
   We use changepoint detection algorithms to analyze Delphi's indicators and classify them as early, on-time, late, undefined, or undetermined. 
-
 output:
   blogdown::html_page:
     toc: true

content/blog/2023-12-20-changepoint_explore.html

@@ -9,8 +9,8 @@
 authors:
   - tara
   - ajoshi
-heroImage: changepoint-hero.png
-heroImageThumb: changepoint-blog.png
+heroImage: changepoint-hero.jpg
+heroImageThumb: changepoint-thumb.png
 
 summary: | 
   We use changepoint detection algorithms to analyze Delphi's indicators and classify them as early, on-time, late, undefined, or undetermined. 

content/blog/2024-01-01-flash-intro.Rmd

@@ -9,8 +9,8 @@ authors:
   - nolan
   - richa
   - tina
-heroImage: flash_long.png
-heroImageThumb: flash_logo.png
+heroImage: flash_hero.jpg
+heroImageThumb: flash_thumb.png
 summary: | 
   Delphi's FlaSH group works to alert experts about data that suggests quality issues or changes in disease dynamics from the millions of data points they publish daily to improve the efficacy of Delphi's data.
 output:

content/blog/2024-01-01-flash-intro.html

@@ -9,8 +9,8 @@
   - nolan
   - richa
   - tina
-heroImage: flash_long.png
-heroImageThumb: flash_logo.png
+heroImage: flash_hero.jpg
+heroImageThumb: flash_thumb.png
 summary: | 
   Delphi's FlaSH group works to alert experts about data that suggests quality issues or changes in disease dynamics from the millions of data points they publish daily to improve the efficacy of Delphi's data.
 output: