Update README.md

README.md

@@ -53,18 +53,24 @@ Other parameters are same for the two functions:
 * Conformation related:
 
   * `skin`: to get a proper bond length for the new bond. Here we adopt the [covalent radii method](https://en.wikipedia.org/wiki/Covalent_radius). A skin parameter is added to finetune the bond length, though it is 0 by default.
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+
     $$
     R(\mathrm{AB})=r(\mathrm{A})+r(\mathrm{B})+skin
     $$
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   * `cutoff_mult`: there are several places to detect neighbors for a specific atom. By default, it is `natural cutoff` as follow equation 2. 
+
+
     $$
     DetectRange(\mathrm{AB})=r(\mathrm{A})+r(\mathrm{B})+0.3
     $$
-    We can enlarge our search scope to multiply the  `natural cutoff` as follow equation 3.
 
+
+    We can enlarge our search scope to multiply the  `natural cutoff` as follow equation 3.
     $$
-    DetectRange(\mathrm{AB})=cutoff\_mult*(r(\mathrm{A})+r(\mathrm{B})+0.3)
+    DetectRange(\mathrm{AB})=cutoff mult*(r(\mathrm{A})+r(\mathrm{B})+0.3)
     $$
 
 * Performance related: