Enhance qgrep command with case insensitivity q

Added case-insensitive grep command for 'swap-files'.

Author: stopsopa

pages/bash/index.html

@@ -1804,6 +1804,9 @@ <h2>grep</h2>
 
           grep 'swap-files' * -rl --exclude-dir={bower_components,node_modules,vendor} --include \*.sh
           grep -r --exclude-dir=node_modules --exclude-dir=product/ddss/ffssfs 'experiment_EP_xxx4' .
+          
+          grep -i 'swap-files' * -rl --exclude-dir={bower_components,node_modules,vendor} --include \*.sh
+            # for CASE INSENSITIVE
 
           # match multiple at once
           MATCHING=();