TF2C: update container policy

Author: Greelan

team-fortress2-classified.kvp

@@ -14,8 +14,8 @@ Meta.MinAMPVersion=2.6.5.0
 Meta.SpecificDockerImage=cubecoders/ampbase:debian
 Meta.DockerRequired=False
 Meta.DockerBaseReadOnly=False
-Meta.ContainerPolicy=Supported
-Meta.ContainerPolicyReason=
+Meta.ContainerPolicy=SupportedOnWindows, RecommendedOnLinux
+Meta.ContainerPolicyReason=The server requires glibc 2.38+ to run on Linux. Using a container addresses this requirement.
 Meta.ExtraSetupStepsURI=
 Meta.Prerequisites=[]
 Meta.ExtraContainerPackages=[]