diff --git a/docs/README.md b/docs/README.md
index 04a0eb1634834307e8db1b54c6be4a53fbd8b2f5..84fef51d101e7b6179f70b3e6b374578bf9e8113 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -3,6 +3,12 @@ Geomag Algorithms Documents Folder
 
 Documents explaining geomag-algorithms
 
+[DeltaF Algorithm](./DeltaF.md)
+------
+
+Describes the theory behind the DeltaF algorithm,  as well as some implementation
+issues and solutions.
+
 [XYZ Algorithm](./XYZ.md)
 ------