Update README.md

Author: bitfaster

README.md

@@ -103,10 +103,10 @@ This test was repeated with the cache configured to different sizes expressed as
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@@ -116,10 +116,10 @@ As above, but interleaving a sequential scan of every key (aka sequential floodi
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@@ -129,10 +129,10 @@ These charts summarize the percentage increase in hit rate ConcurrentLru vs LRU.
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