Apply suggestion from @v-ccolin

Author: v-ccolin

learn-pr/paths/introduction-cloud-infrastructure-apply-azure-skills-guided-projects/index.yml

@@ -7,7 +7,7 @@ metadata:
   author: wwlpublish
   ms.author: robbarefoot
   ms.topic: learning-path
-title: 'Introduction to Cloud Infrastructure: Apply Azure skills in guided projects'
+title: 'Introduction to cloud infrastructure: Apply Azure skills in guided projects'
 prerequisites: |
   *   Basic familiarity with IT terms and concepts
 summary: |