Fixed minor typos

topics/certifications/da-100.md

@@ -20,12 +20,12 @@ This decision doesn't affect the DA-100 Exam, which was [officially launched in
 ___
 
 ## Contents
-- [Posts & Guides](#posts-&-guides)
+- [Posts & Guides](#posts--guides)
 - [Labs](#labs)
 - [Books](#books)
-- [Videos / Sessions](#videos-/-sessions)
+- [Videos / Sessions](#videos--sessions)
 - [Online Trainings](#online-trainings)
-- [Practice Exams / Tests](#practice-exams-/-tests)
+- [Practice Exams / Tests](#practice-exams--tests)
 
 
 ## Posts & Guides
@@ -56,7 +56,7 @@ ___
 ## Practice Exams / Tests
 |                                                                        Title/Link    | Description                                                                                                                                     | Author            |
 | :----------------------------------------------------------------------------------: | :---------------------------------------------------------------------------------------------------------------------------------------------- | :---------------- |
-| [Microsoft AZ-400 Exam](https://www.examtopics.com/exams/microsoft/70-778/view/)     |  100 free questions to challenge you (Note: For the old MCP Exam 70-778; Content is yet to be updated for DA-100 Exam)                          | ExamTopics        |
+| [Exam 70-778 Sample](https://www.examtopics.com/exams/microsoft/70-778/view/)        |  100 free questions to challenge you (Note: For the old MCP Exam 70-778; Content is yet to be updated for DA-100 Exam)                          | ExamTopics        |
 
 ___
  <a href="#top" title="Back to the top.">↑Top</a>