Heads and tags each curl entry / added comments

Each entry has a header line and an end line to easily extract it using
sed

src/removeadhosts.sh

@@ -1,6 +1,10 @@
 #!/bin/bash
+
+# Create temporary files to hold the old configs
 sed -n '1,/# start of removeadhosts/p' /etc/hosts > /tmp/removeadhosts-head
 sed -n '/# start of removeadhosts/,/# Custom ad list/p' /etc/hosts | sed -e '/# Custom ad list/d' -e '1d' > /tmp/removeadhosts-curl
+
+# Copy back all the custom entries
 cat /tmp/removeadhosts-head | tee /etc/hosts >/dev/null
 rm /tmp/removeadhosts-head
 echo "Appended old hosts"
@@ -12,13 +16,16 @@ else
         echo '# start of removeadhosts' >> /etc/hosts
 fi
 
+
+# Download entries from the listings list
 echo 'Downloading ad list'
 if [ -e /etc/removeadhosts/adlistings.txt ]
 then
         cat /etc/removeadhosts/adlistings.txt | \
         while read SITE; do
+            echo "# removeadhosts site - $SITE" >> /etc/hosts
             curl $SITE 2>/dev/null | tee -a /etc/hosts >/dev/null
-            echo "0.0.0.0 $CMD" >> /etc/hosts
+            echo "# removeadhosts site - end" >> /etc/hosts
         done
 fi
 
@@ -29,6 +36,8 @@ then
 fi
 rm /tmp/removeadhosts-curl
 
+
+# Add entries from adlist
 echo 'Adding custom items from /etc/removeadhosts'
 if [ -e /etc/removeadhosts/adlist.txt ]
 then