1 files changed, 4 insertions, 1 deletions

diff --git a/README.md b/README.md
index c6c69e0..a4efa6f 100644
--- a/README.md
+++ b/README.md
@@ -158,7 +158,7 @@ Another possibility is to pass the value to *etoolkit*'s *stdin* using a pipe.
 ... or if the *ETOOLKIT_MASTER_PASSWORD* env. variable is defined, its value
 will be used instead of prompting for password.
 
-Listing all available instances defined in the configuration file and then
+Listing available instances defined in the configuration file and then
 loading a specific instance can be achieved by:
 
    ```bash
@@ -166,6 +166,9 @@ loading a specific instance can be achieved by:
    etoolkit <instance-name>
    ```
 
+Instances with names starting with *_* will be considered *abstract* and will
+not be displayed by *--list*.
+
 *etoolkit* will prompt for the master password the first time it encounters
 and encrypted value. Once provided the master password will be used to decrypt
 the rest of the encrypted values.