Typo fix in upgrading.md (#39691)

docs/sources/installation/upgrading.md

@@ -375,6 +375,6 @@ For more information, refer to the our relational databases documentation of [Po
 
 As of Grafana v8.1, we no longer support unencrypted storage of passwords and basic auth passwords.
 
-> **Note":** Since Grafana v6.2, new or updated data sources store passwords and basic auth passwords encrypted. See [upgrade note]({{< relref "#ensure-encryption-of-data-source-secrets" >}}) for more information. However, unencrypted passwords and basic auth passwords were also allowed.
+> **Note:** Since Grafana v6.2, new or updated data sources store passwords and basic auth passwords encrypted. See [upgrade note]({{< relref "#ensure-encryption-of-data-source-secrets" >}}) for more information. However, unencrypted passwords and basic auth passwords were also allowed.
 
 To migrate to encrypted storage, follow the instructions from the [v6.2 upgrade notes]({{< relref "#ensure-encryption-of-data-source-secrets" >}}). You can also use a `grafana-cli` command to migrate all of your data sources to use encrypted storage of secrets. See [migrate data and encrypt passwords]({{< relref "../administration/cli.md#migrate-data-and-encrypt-passwords" >}}) for further instructions.