Update documentation of InDetRawData package (ATLASRECTS-5238)

• Update documentation of InDetRawData package
• https://its.cern.ch/jira/browse/ATLASRECTS-5238

This merge request affects 1 package:

• InnerDetector/InDetRawEvent/InDetRawData

Adding @goetz ,@sroe as watchers

added InnerDetector master review-pending-level-1 labels

CI Result SUCCESS (hash 76e443be)

	Athena	AthSimulation	AthGeneration	AnalysisBase
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 21462]

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit 919ab77d

added sweep:ignore label