document the cherry-pick process I'm using to make docs updates

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@docker.com> (github: SvenDowideit)
Add a progress bar for ADD <url> <dst>

Signed-off-by: Victor Vieux <vieux@docker.com>
Cleanup: Typo in job.go

Signed-off-by: Byung Kang <byungk91@gmail.com>
Adding Docs Deploy process to Docs ReadMe

Additions and revisions to Sven's cherry-pick process doc.

Docker-DCO-1.1-Signed-off-by: Fred Lifton <fred.lifton@docker.com> (github: fredlf)
Merge pull request #7800 from djbk/master

Cleanup: Typo in job.go
Merge pull request #7315 from vieux/add_pb

add progress bar to ADD
move some io related utils to pkg/ioutils

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
pkg/ioutils: add WriteCloserWrapper

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
pkg/ioutils: add NewBufReaderWithDrainbufAndBuffer

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
pkg/ioutils: add ReaderErrWrapper to readers

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
pkg/pool: add pools for bufio readers & writers

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
archive: use pooled bufio readers and writers

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
Merge pull request #7542 from unclejack/refactor_archive_buffering

Refactor archive buffering
Add --force-rm to docker build command completion

Signed-off-by: Thomas LEVEIL <thomasleveil@gmail.com>
fix typos in error messages

Signed-off-by: Ward Vandewege <ward@jhvc.com> (github: cure)
Merge pull request #7850 from fredlf/add_cherrypick_process

Add cherrypick process
Merge pull request #7818 from thomasleveil/completion-docker-build

Add --force-rm to docker build command completion
Merge pull request #7865 from cure/master

fix typos in error messages