docs: add manual gpg decrypt example

docs/how-tos/encrypt-backup.md

@@ -11,6 +11,14 @@ The image supports encrypting backups using GPG out of the box. In case a `GPG_P
 {: .warning }
 To restore an encrypted backup, you need to provide the same GPG passphrase used during backup process.
 
+To decrypt manually, you need to install gpg
+
+```shell
+gpg --batch --passphrase "my-passphrase" \
+--output database_20240730_044201.sql.gz \
+--decrypt database_20240730_044201.sql.gz.gpg
+```
+
 ### Backup
 
 ```yml

docs/index.md

@@ -6,7 +6,7 @@ nav_order: 1
 
 # About pg-bkup
 {:.no_toc}
-pg-bkup it's a Docker container image that can be used to backup and restore Postgres database. It supports local storage, AWS S3 or any S3 Alternatives for Object Storage, and SSH compatible storage.
+pg-bkup is a Docker container image that can be used to backup and restore Postgres database. It supports local storage, AWS S3 or any S3 Alternatives for Object Storage, and SSH compatible storage.
 It also supports __encrypting__ your backups using GPG.
 
 We are open to receiving stars, PRs, and issues!