Add caution to not modify ../ in git command

Using incorrect repository location is hard to catch during review and
merging it causes all jenkins verify job to fail. Thus let's add a
warning to the documentation to warn potential users and avoid such
incidents.

Issue-ID: SECCOM-239
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Change-Id: I6b00a5bc6f34d33f2576c802eccf541069499d84
1 file changed