Fix readme

README.md

@@ -0,0 +1,30 @@
+# PiShrink #
+PiShrink is a bash script that automatically shrink a pi image that will then resize to the max size of the SD card on boot.
+`Usage: ./pishrink imagefile.img`
+
+## Example ##
+```bash
+[user@localhost PiShrink]$ sudo ./shrink.sh pi.img 
+e2fsck 1.42.9 (28-Dec-2013)
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+/dev/loop1: 88262/1929536 files (0.2% non-contiguous), 842728/7717632 blocks
+resize2fs 1.42.9 (28-Dec-2013)
+resize2fs 1.42.9 (28-Dec-2013)
+Resizing the filesystem on /dev/loop1 to 773603 (4k) blocks.
+Begin pass 2 (max = 100387)
+Relocating blocks             XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+Begin pass 3 (max = 236)
+Scanning inode table          XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+Begin pass 4 (max = 7348)
+Updating inode references     XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+The filesystem on /dev/loop1 is now 773603 blocks long.
+
+Shrunk pi.img from 30G to 3.1G
+```
+
+## Credits ##
+Thanks to SirLagz for the code to shrink http://sirlagz.net/2013/03/10/script-automatic-rpi-image-downsizer/