Added description of Document Uploading. Ref: #5. a19107906383478, a19107906383490, a18673866971731
Merge branch 'master' of github.com:openprocurement/openprocurement.api
Added internal reference to Document Uploading section
Added description of Document Updating. Ref: #5. a19107906383486, a19107906383480, a18673866971731
Added section describing the file uploading rules. Ref: #5. a18673866971731
Added example of multipart/form-data
Corrected erros in description
Adding example of documentation retrieving. Fixes #8. a19107906383484, a19107906383488, a19047726859511
Defining structure for the tutuorial
Correcting include file name
Updating tutorial with sections about documentation uploading, Bid registration, and qualification confirmation. Fixes: #5. a18673866971731