Add Quotation marks to make description better understandable

[sluetze]

See comments in ComplianceAsCode#12247

https://github.com/ComplianceAsCode/content/blob/master/controls/bsi_sys_1_6.yml#L320-L321

should be

The results of the checking described under SYS.1.6.A3: "Secure Use of Containerised IT Systems" SHOULD be documented in a comprehensible manner.

[jraviS2023]

Hey @sluetze, I'd love to tackle the quotation marks to make the description better understandable issue! Mind assigning it to me when you get a chance? Thanks!