Update with-recursive.adoc

[GauravJayaraj]

Minor:

Cycle field expression allows path as well to access nested feilds( in 7.6.0)
A new error is added in 7.62, to disallow any other expression, for eg: 1+1(an arithmetic expression), in 7.6.0 we just ignore such examples:

 WITH RECURSIVE cyc AS ( SELECT 0 as _from, 1 as _to, 0 as lvl UNION SELECT n._from, n._to, c.lvl+1 as lvl FROM `shellTest`._default.cycleTest n JOIN cyc c ON c._to = n._from) CYCLE _from, _to, 1+1 RESTRICT SELECT cyc.* FROM cyc;
{
    "requestID": "5aa50b56-8fe4-41ad-a395-0a984e181c79",
    "errors": [
        {
            "code": 3307,
            "msg": "Cycle fields validation failed for with term: cyc - cause: invalid cycle field expression term: (1 + 1) only identifier/path expressions are allowed"
        }
    ],
    "status": "fatal",
    "metrics": {
        "elapsedTime": "7.668208ms",
        "executionTime": "7.335208ms",
        "resultCount": 0,
        "resultSize": 0,
        "serviceLoad": 2,
        "errorCount": 1
    }
}

[julia-cb]

@GauravJayaraj hey Gaurav, feel free to close this PR since I already made the changes to the page :)