Add docs.vulkan.org page information to validusage.json #962

Job	Run time
Run Vulkan CTS framework tests to validate against XML changes	1m 46s
Build the vulkan specification and generate any associated files (such as vulkan.h)	6m 21s
Verify repository license compliance	39s
Build the core-only spec, to try and catch ifdef errors in extension markup	50s
Build a test spec and check against expectation, to make sure the spec toolchain works as expected	1m 23s
Run various checker scripts on the spec and XML sources	51s
Generate Rust bindings (Ash crate)	53s
Generate the vulkan C++ header (vulkan.hpp)	1m 7s
Compile a simple test program that uses vulkan.h	18s
Build-test Rust bindings (Ash crate)	36s
Compile a simple test program that uses vulkan.hpp	27s
	15m 11s

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