In its drive to make Instant Articles support other major publishing formats, Facebook has launched an  an extension for the open source Software Development Kit (SDK) which is used to build Instant Articles. The new SDK will build content publishable as Google AMP and in near future it will also build content that could be published as Apple News articles.The Facebook team says, “The updated SDK transforms the markup publishers use to create Instant Articles to generate the code needed to build these other formats, removing what we’ve heard can be a resource-heavy step in publishing... [...]