Add syn flood scenario to the list of supported scenarios

Signed-off-by: Naga Ravi Chaitanya Elluri <nelluri@redhat.com>

README.md

@@ -22,6 +22,7 @@ Scenario   | Description                                                      |
 [Network Chaos](docs/network-chaos.md) | Introduces network latency, packet loss, bandwidth restriction in the egress traffic of a Node's interface using tc and Netem | :heavy_check_mark: | 
 [Pod Network Chaos](docs/pod-network-chaos.md) | Introduces network chaos at pod level                            | :heavy_check_mark: |
 [Service Hijacking](docs/service-hijacking.md) | Hijacks a service http traffic to simulate custom HTTP responses | :heavy_check_mark: |
+[SYN Flood](docs/syn-flood.md) | Simulates a user-defined surge of TCP SYN requests directed at one or more services | :heavy_check_mark: |
 
 ### Utilities