doc: fix typo in l2fwd-crypto guide

[ upstream commit 3cc2800 ]

Unmatched double quotation mark is fixed.

Fixes: ba7b86b ("doc: add l2fwd-crypto sample app guide")

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>

doc/guides/sample_app_ug/l2_forward_crypto.rst

@@ -204,7 +204,7 @@ Crypto operation specification
 All the packets received in all the ports get transformed by the crypto device/s
 (ciphering and/or authentication).
 The crypto operation to be performed on the packet is parsed from the command line
-(go to "Running the Application section for all the options).
+(go to "Running the Application" section for all the options).
 
 If no parameter is passed, the default crypto operation is: