Update PoC ISO for OpenNebula CE to 7.4 (#797)

(cherry picked from commit a6e4a8e)

Author: brodriguez-opennebula

content/getting_started/try_opennebula/opennebula_sandbox_deployment/deploy_opennebula_onprem_with_poc_iso.md

@@ -33,7 +33,7 @@ The OpenNebula ISO is based on AlmaLinux 9, thus it shares the same requirements
 
 Download the OpenNebula ISO (based on Alma Linux). Currently, the following versions are available:
 
-- [OpenNebula 7.2 Community Edition](https://one-poc.s3.eu-central-1.amazonaws.com/7.2/CE/opennebula-7.2-CE.iso) \([SHA256 checksum](https://one-poc.s3.eu-central-1.amazonaws.com/7.2/CE/opennebula-7.2-CE.iso.sha)\)
+- [OpenNebula 7.4 Community Edition](https://one-poc.s3.eu-central-1.amazonaws.com/7.4/CE/opennebula-7.4-CE.iso) \([SHA256 checksum](https://one-poc.s3.eu-central-1.amazonaws.com/7.4/CE/opennebula-7.4-CE.iso.sha)\)
 
 Once the image is downloaded, there are two installation options:
 
@@ -43,7 +43,7 @@ Once the image is downloaded, there are two installation options:
 From Linux or MacOS, the image can be dumped on the USB with the following command
 
 ```bash
-dd if=/path/to/your/opennebula-7.0.1-CE.iso of=/dev/sdXX
+dd if=/path/to/your/opennebula-7.4-CE.iso of=/dev/sdXX
 ```
 
 {{< alert title="Check the USB drive" type="warning" >}}

content/product/cloud_system_administration/authentication_configuration/saml.md

@@ -52,7 +52,7 @@ OpenNebula can be also configured to enable external SAML authentication for all
 DEFAULT_AUTH = "saml"
 ```
 
-This will avoid cloud admins having to manually create users with the SAML authentication driver. If  `DEFAULT_AUTH` is set to "saml", successfully authenticated users that are not present in the OpenNebula database will be automatically provisioned.
+This will avoid cloud admins having to manually create users with the SAML authentication driver. If `DEFAULT_AUTH` is set to "saml", successfully authenticated users that are not present in the OpenNebula database will be automatically provisioned.
 
 Note that this authentication method provides only access to fireedge. API/CLI access rely on generating a temporary token ( Settings -> Security -> Login Token -> Get a new token ).