[readme] Add publications #1284

Job	Run time
tc-llvm	4m 9s
check-opcodes	3s
riscv-isa-sim	9s
tc-gcc	1m 39s
verilator	11s
verilator-model (minpool)	11s
verilator-model (mempool)	14s
unit-test	2m 27s
build-apps-omp (minpool)	34s
check-bootrom	18s
build-apps-omp (mempool)	38s
build-apps-gcc (minpool)	1m 0s
build-apps-gcc (mempool)	58s
run-apps-gcc (minpool)	27s
run-apps-gcc (mempool)	1m 37s
tc-halide	21s
build-apps-llvm (minpool)	1m 15s
build-apps-llvm (mempool)	1m 13s
build-apps-halide (minpool)	1m 13s
build-apps-halide (mempool)	1m 11s
run-apps-llvm (minpool)	25s
run-apps-llvm (mempool)	1m 44s
run-apps-halide (minpool)	29s
run-apps-halide (mempool)	1m 44s
clean-up	2s
clean-up-compile-runs (minpool)	2s
clean-up-compile-runs (mempool)	2s
	24m 16s

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