message: fix the hyperlink in the doc
  the text and link are reversed.
diff: @@ -6,7 +6,7 @@ CVE-2018-7577
  ### Issue Description
  -TensorFlow checkpoint meta file uses Google's [https://github.com/google/snappy](snappy)
  +TensorFlow checkpoint meta file uses Google's [snappy](https://github.com/google/snappy)
  compression/decompression library. There is a memcpy-param-overlap issue in the
  version of snappy currently used by TensorFlow.
  