Update pages/user guides/code_analysis_overview.md

Co-authored-by: Sam King <43866616+SamDesmondKing@users.noreply.github.com>

Author: prees1

pages/user guides/code_analysis_overview.md

@@ -9,7 +9,7 @@ folder: userguides
 permalink: code-analysis-overview.html
 ---
 
-Analyzes application's source code for various patterns that are useful in assessing applications for transformation and continual modernization.
+Analyzes an application's source code for various patterns that are useful in assessing applications for transformation and continual modernization.
 
 ## Language support