Add explicit hline instead of phantom h1 (#1189)

Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index 66ea5894..30969171 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 ![FIRRTL](https://raw.githubusercontent.com/freechipsproject/firrtl/master/doc/images/firrtl_logo.svg?sanitize=true)
 
-#
+---
 
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