diff --git a/README.md b/README.md
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@@ -1,9 +1,9 @@
 # PhyloToL-6
-an updated version of PhyloToL started in 2023
+An updated version of PhyloToL started in 2023
 
-PTL1 includes scripts for assigning transcripts and cds' to gene familes (OGs)
+[PTL1](https://github.com/Katzlab/PhyloToL-6/tree/main/PTL1) includes scripts for assigning transcripts and cds' to gene familes (OGs)
 
-PTL2 is repository for main MSA and tree building scripts
+[PTL2](../PhyloToL-6/PTL2) is repository for main MSA and tree building scripts
 
 HookDB is our set of eukaryotic gene families, a subsample of gene families from orthomcl 6