readme fix

Author: mahendya1002

README.md

@@ -112,7 +112,7 @@ Unix or Linux:	runSample.sh <service_name>
 - To convert the p12 file to JKS follow the steps mentioned below.
   - These commands will take out all the certs from the p12 file. 
   1. `openssl pkcs12 -in <Merchant_ID>.p12 -nocerts -out <Merchant_ID>.key`
-  2. `openssl pkcs12 -in <Merchant_ID>.p12 -cacerts -nokeys -out  <Merchant_ID>.crt`
+  2. `openssl pkcs12 -in <Merchant_ID>.p12 -clcerts -nokeys -out  <Merchant_ID>.crt`
   3. `openssl pkcs12 -in <Merchant_ID>.p12 -cacerts -nokeys -out CyberSourceCertAuth.crt`
   4. `openssl pkcs12 -in <Merchant_ID>.p12 -cacerts -nokeys -out CyberSource_SJC_US.crt`