Source docs improvements

[gabo1208]

Changes

• 🐛 Fixed bug where the Source BackoffDelay was being parsed incorrectly
• 🎁 Added retries configuration samples for Sources and Brokers/Triggers

/kind bug documentation

Fixes #900

Release Note

🐛 Fixed bug where the Source BackoffDelay was being parsed incorrectly

[codecov]

Codecov Report

Merging #907 (848cd25) into main (6d2e8ae) will increase coverage by 0.03%.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##             main     #907      +/-   ##
==========================================
+ Coverage   71.11%   71.14%   +0.03%     
==========================================
  Files          43       43              
  Lines        2970     2970              
==========================================
+ Hits         2112     2113       +1     
+ Misses        779      778       -1     
  Partials       79       79              

Impacted Files	Coverage Δ
pkg/dispatcher/dispatcher.go	42.96% <ø> (+0.31%)	⬆️
pkg/rabbit/message.go	71.42% <0.00%> (+2.52%)	⬆️
pkg/adapter/adapter.go	60.97% <100.00%> (-1.38%)	⬇️
pkg/reconciler/source/resources/receive_adapter.go	95.38% <100.00%> (-0.04%)	⬇️

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[gab-satchi]

just some nits with the title

[gab-satchi]

/lgtm

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gab-satchi, gabo1208

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[gabo1208]

/cherry-pick release-1.7

[knative-prow-robot]

@gabo1208: new pull request created: #909

In response to this:

/cherry-pick release-1.7

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