Merge pull request DataDog#3119 from DataDog/kyle-verhoog/python-open…

…tracing

[apm/python] Add OpenTracing reference + small fixes

Merge pull request DataDog#3130 from DataDog/gus/real-logo

Using official logo

Merge pull request DataDog#3129 from DataDog/david.jones/imgurl-partial

use hashed img path for og image default

Merge pull request DataDog#3127 from DataDog/gus/placeholders

Fixing API placeholders

Merge pull request DataDog#3126 from DataDog/gus/og-image

Cropping space around logo

Merge pull request DataDog#3123 from DataDog/gus/deprecated-param

Removing deprecated param

Merge pull request DataDog#3118 from DataDog/sachdevs-servicemd-gramm…

…ar-fix

Fix grammar error in service.md

Merge pull request DataDog#3117 from DataDog/gus/fixes

Small fixes to param desc

Merge pull request DataDog#3114 from DataDog/gus/tracing-docker-doc

Moving confusing docker param from main setup page

Merge pull request DataDog#3113 from DataDog/gus/title

removing title in tabs