chore: update description to indicate execProbe is preferred

Author: astromechza

score-v1b1.json

@@ -338,7 +338,7 @@
     },
     "containerProbe": {
       "type": "object",
-      "description": "The probe may be defined as either http, command execution, or both when the deployment runtime supports one and not the other.",
+      "description": "The probe may be defined as either http, command execution, or both. The execProbe should be preferred if the Score implementation supports both types.",
       "additionalProperties": false,
       "properties": {
         "httpGet": {