Update az-900.md format (#22)

Author: tungbq

certification/az-900.md

@@ -2,19 +2,19 @@
 
 ## Resources
 
-- Certification exam preparation by Azure: [**here**](https://learn.microsoft.com/en-us/credentials/certifications/azure-fundamentals/?practice-assessment-type=certification)
-- Study guide: [**Study guide for Exam AZ-900**](https://learn.microsoft.com/en-us/credentials/certifications/resources/study-guides/ai-900)
+- Certification exam preparation by Azure: [here](https://learn.microsoft.com/en-us/credentials/certifications/azure-fundamentals/?practice-assessment-type=certification)
+- Study guide: [here](https://learn.microsoft.com/en-us/credentials/certifications/resources/study-guides/ai-900)
 - https://github.com/johnthebrit/AZ900CertCourse
 - https://www.exampro.co/az-900
-- Website: **https://marczak.io/az-900/**
+- Marczak.IO website: https://marczak.io/az-900/
 
 ## Course
-
-- Adam Marczak - AZ-900 Microsoft Azure Fundamentals Free Full Course and Study Guide: [**here**](https://www.youtube.com/watch?v=NPEsD6n9A_I&list=PLGjZwEtPN7j-Q59JYso3L4_yoCjj2syrM)
-- John Savill - AZ-900 Certification Course: [**here**](https://www.youtube.com/playlist?list=PLlVtbbG169nED0_vMEniWBQjSoxTsBYS3)
-- Microsoft Azure Fundamentals Certification Course (AZ-900) UPDATED – Pass the exam in 8 hours!: [**here**](https://www.youtube.com/watch?v=5abffC-K40c)
-- Free Code Camp - Microsoft Azure Fundamentals Certification Course (AZ-900): [**here**](https://youtu.be/5abffC-K40c)
-- Free Code Camp - Microsoft Azure Fundamentals Certification Course (AZ-900) - Pass the exam in 3 hours!: [**here**](https://www.youtube.com/watch?v=NKEFWyqJ5XA)
+Free on Youtube
+- Adam Marczak - AZ-900 Microsoft Azure Fundamentals Free Full Course and Study Guide: [here](https://www.youtube.com/watch?v=NPEsD6n9A_I&list=PLGjZwEtPN7j-Q59JYso3L4_yoCjj2syrM)
+- John Savill - AZ-900 Certification Course: [here](https://www.youtube.com/playlist?list=PLlVtbbG169nED0_vMEniWBQjSoxTsBYS3)
+- Microsoft Azure Fundamentals Certification Course (AZ-900) UPDATED – Pass the exam in 8 hours!: [here](https://www.youtube.com/watch?v=5abffC-K40c)
+- Free Code Camp - Microsoft Azure Fundamentals Certification Course (AZ-900): [here](https://youtu.be/5abffC-K40c)
+- Free Code Camp - Microsoft Azure Fundamentals Certification Course (AZ-900) - Pass the exam in 3 hours!: [here](https://www.youtube.com/watch?v=NKEFWyqJ5XA)
 
 ## Study Cram