Add page in pipelines section of duplex pipelines

[efigb]

Add page in pipelines section of the documentation regarding internal analysis summary, with step by step instructions on how we organize, links to official documentation and metrics. Will be reviewed by @FerriolCalvet.

[efigb]

refer to the wiki s3 entry to allow s3 to access to data through pipeline secrets

[efigb]

Documentation of the duplex organization steps to adapt to the wiki entry here

[FerriolCalvet]

for now I kept the link to the google docs as something internal to be requested and not make it publicly available.