correct example inputs for recent changes to create_bonds command

examples/balance/in.balance.bond.fast

@@ -32,7 +32,7 @@ bond_coeff      1 10.0 1.2
 # need to preserve 1-3, 1-4 pairwise interactions during hard collisions
 
 special_bonds   lj/coul 0 1 1
-create_bonds    all all 1 1.0 1.5
+create_bonds    many all all 1 1.0 1.5
 
 neighbor	0.3 bin
 neigh_modify	delay 0 every 1 check yes

examples/balance/in.balance.bond.slow

@@ -32,7 +32,7 @@ pair_coeff	1 1 10.0 1.0 2.5
 bond_style      harmonic
 bond_coeff      1 10.0 1.2
 
-create_bonds    all all 1 1.0 1.5
+create_bonds    many all all 1 1.0 1.5
 
 neighbor	0.3 bin
 neigh_modify	delay 0 every 1 check yes