removed karina from mentors, also removed old images of previous mentors (#151)

assets/mentors-images/convert-mentors-images.sh

@@ -1,11 +1,11 @@
-mkdir -p optimised
-for file in original/*; do
-    echo $file
-    base_name=$(basename $file)
-    if [[ $base_name == *"airiin"* ]] || [[ $base_name == *"lembitu"* ]] ; then
-        gravity=north
-    else
-        gravity=center
-    fi    
-    convert ${file} -resize "400x400^>" -gravity $gravity -extent 400x400  optimised/${base_name%}
-done
+mkdir -p optimised
+for file in original/*; do
+    echo $file
+    base_name=$(basename $file)
+    if [[ $base_name == *"airiin"* ]] || [[ $base_name == *"lembitu"* ]] ; then
+        gravity=north
+    else
+        gravity=center
+    fi    
+    convert ${file} -resize "400x400^>" -gravity $gravity -extent 400x400  optimised/${base_name%}
+done