Task(1016723): Added the Getting started MD files

[VenkateshwaranSF5013]

In this PR We have

• Added the Getting started MD files
• Addressed changes the other MD files in Data extraction.
• Addressed the noted issue occurs in last staging environment.

[SyncfusionBuild]

Build Status: INPROGRESS 🔃
Build Location: 1016723-SmartDataExtractor_FAQ

[SyncfusionBuild]

CI Status: FAILURE ❌
Source Compilation: SUCCESS ✅
Failure Reason: CI Failure with violation
Build Location: 1016723-SmartDataExtractor_FAQ
Technical Error(s): 0
Spelling Error(s): 0
Image Alt Text Error(s): 0
Image Size Error(s): 0
Image Name Error(s): 0
Front matter Error(s): 3
File Path Error(s): 0
CodeSnippet File Path Missing Error(s): 0
Toc Anchor Tags Validation Error(s): 0
MD Tag Validation Error(s): 0

[SyncfusionBuild]

The running CI Job is terminated due to changes committed on the source branch for this Merge Request and CI triggered for latest commit.

[SyncfusionBuild]

CI Status: ABORTED ❌
Source Compilation: Not Started ❌
Build Location: 1016723-SmartDataExtractor_FAQ

[SyncfusionBuild]

Build Status: INPROGRESS 🔃
Build Location: 1016723-SmartDataExtractor_FAQ

[SyncfusionBuild]

CI Status: SUCCESS ✅
Source Compilation: SUCCESS ✅
Build Location: 1016723-SmartDataExtractor_FAQ
Technical Error(s): 0
Spelling Error(s): 0
Image Alt Text Error(s): 0
Image Size Error(s): 0
Image Name Error(s): 0
Front matter Error(s): 0
File Path Error(s): 0
CodeSnippet File Path Missing Error(s): 0
Toc Anchor Tags Validation Error(s): 0
MD Tag Validation Error(s): 0

[GowthamrajKumar25]

Please do the discussed changes in this PR. @VenkateshwaranSF5013