From ed6d2cb86f45fd0aa9bfe6170c4a3fa34fabd724 Mon Sep 17 00:00:00 2001
From: Pradeep Bashyal <pbashyal@nmdp.org>
Date: Tue, 21 May 2024 14:46:38 -0500
Subject: [PATCH] Add note for ping mode.

---
 README.md | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 5f6da79..6c67e38 100644
--- a/README.md
+++ b/README.md
@@ -8,9 +8,11 @@ Swiss army knife of **HLA** Nomenclature
 
 **Note:**
 
-Release `1.1.1` has extensive Serolgy related updates and affects Serology related data. Please rebuild the cache database if there's a missing Serology error.
+- `ping` mode is default. When in `ping` mode, alleles that do not have a G group, their corresponding P group is used.
+
+- Release `1.1.1` has extensive Serolgy related updates and affects Serology related data. Please rebuild the cache database if there's a missing Serology error.
 ```
-pyard-import --re-install
+   pyard-import --re-install
 ```
 
 Or set `py-ard` requirements to be `py-ard<=1.1.1` for your dependency.