diff --git a/README.md b/README.md
index be4b925b0af5ce581cdec1968a0bed6f98a1d3a6..d9cead9bf6b5891c394f33f735d4c4110f8a27e0 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ gnuplot (www.gnuplot.info/)
 ${SRC_DIR}/recursive_gmconvert.sh -f map_filename -t threshold -n num_gaussians -N num_iterations [-i first_iteration] [-s]
 ```
 
-###Required arguments:
+### Required arguments:
 
 `-f map_filename`: the file name of the input EM map
 
@@ -29,7 +29,7 @@ ${SRC_DIR}/recursive_gmconvert.sh -f map_filename -t threshold -n num_gaussians
 
 `-N num_iterations`: number of recursion levels
 
-###Optional arguments:
+### Optional arguments:
 
 `-i first_iteration`: initial recursion level (defaults to 1)