Add README.

3 files changed, 370 insertions, 0 deletions

diff --git a/doc/cost.png b/doc/cost.png
new file mode 100644
index 00000000..cd83e986
--- /dev/null
+++ b/doc/cost.png
diff --git a/doc/design.svg b/doc/design.svg
new file mode 100755
index 00000000..d9ac570b
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