Updating g_stands_for.md
diff --git a/doc/g_stands_for.md b/doc/g_stands_for.md
index 53a1fdf..d2fc7a5 100644
--- a/doc/g_stands_for.md
+++ b/doc/g_stands_for.md
@@ -7,3 +7,4 @@
 - 1.0 'g' stands for 'gRPC'
 - 1.1 'g' stands for 'good'
 - 1.2 'g' stands for 'green'
+- 1.3 'g' stands for 'gentle'