Update README.md

Author: JingweiToo

README.md

@@ -30,22 +30,22 @@ FS = jfs('sma',feat,label,opts);
 ```
 
 ## Input
-* feat   : feature vector matrix ( Instance x Features )
-* label  : label matrix ( Instance x 1 )
-* opts   : parameter settings
-    + N : number of solutions / population size ( *for all methods* )
-    + T : maximum number of iterations ( *for all methods* )
-    + k : *k*-value in *k*-nearest neighbor 
+* *feat*   : feature vector matrix ( Instance *x* Features )
+* *label*  : label matrix ( Instance *x* 1 )
+* *opts*   : parameter settings
+    + *N* : number of solutions / population size ( *for all methods* )
+    + *T* : maximum number of iterations ( *for all methods* )
+    + *k* : *k*-value in *k*-nearest neighbor 
 
 
 ## Output
-* Acc  : accuracy of validation model
-* FS   : feature selection model ( It contains several results )
-    + sf : index of selected features
-    + ff : selected features
-    + nf : number of selected features
-    + c  : convergence curve
-    + t  : computational time (s)
+* *Acc*  : accuracy of validation model
+* *FS*   : feature selection model ( It contains several results )
+    + *sf* : index of selected features
+    + *ff* : selected features
+    + *nf* : number of selected features
+    + *c*  : convergence curve
+    + *t*  : computational time (s)
 
 
 ## Notation