Fix keyword

Co-authored-by: Noa Tamir <[email protected]>

Author: mattip

apps/labs/posts/nasa-roses-grant-2020.md

@@ -11,7 +11,7 @@ featuredImage:
     projects, to applications.'
 hero:
   imageSrc: /posts/nasa-rose-grant-2020/scientific_python_ecosystem.png
-  alt: 'River of scientific python projects, flowing from Python and Numpy, to
+  imageAlt: 'River of scientific python projects, flowing from Python and Numpy, to
     Foundational projects, to technique-specific projects, to domain-specific
     projects, to applications.'
 ---