diff --git a/README.md b/README.md
index e17fa17..6dbf5ff 100644
--- a/README.md
+++ b/README.md
@@ -186,19 +186,19 @@ Internally generated decoys will have protein accessions matching "{decoy_tag}{a
       "C": 57.0215          // Apply static modification to cysteine
     },
     "variable_mods": {      // Optional[Dict[char, float]] {default={}}, variable modifications
-      "M": 15.9949          // Variable mods are applied *before* static mods
-      "$": 49.2022          // Apply variable modification to C-terminus of peptide
-      "[": 42.0             // Apply variable modification to N-terminus of protein
+      "M": 15.9949,         // Variable mods are applied *before* static mods
+      "$": 49.2022,         // Apply variable modification to C-terminus of peptide
+      "[": 42.0,            // Apply variable modification to N-terminus of protein
       "]": 111.0            // Apply variable modification to C-terminus of protein
     },
     "max_variable_mods": 2, // Optional[int] {default=2} Limit k-combinations of variable modifications
     "decoy_tag": "rev_",    // Optional[str] {default="rev_"}: See notes above
-    "generate_decoys": false  // Optional[bool] {default="true"}: Ignore decoys in FASTA database matching `decoy_tag`
+    "generate_decoys": false, // Optional[bool] {default="true"}: Ignore decoys in FASTA database matching `decoy_tag`
     "fasta": "dual.fasta"   // str: mandatory path to FASTA file
   },
   "quant": {                // Optional - specify only if TMT or LFQ
     "tmt": "Tmt16",         // Optional[str] {default=null}, one of "Tmt6", "Tmt10", "Tmt11", "Tmt16", or "Tmt18"
-    "lfq": true,            // Optional[bool] {default=null}, perform label-free quantification
+    "lfq": true             // Optional[bool] {default=null}, perform label-free quantification
   },
   "precursor_tol": {        // Tolerance can be either "ppm" or "da"
     "da": [