added shorthands to README

devices/statistics_writer/README.md

@@ -12,14 +12,14 @@ and writing those matrices (as well as a bunch of metadata) to hdf5.
 The TCP statistics writer can be called with the `tcp_hdf5_writer.py` script.
 This script can be called with the following arguments:
   ```
-  --host        the address to connect to
-  --port        the port to use
-  --file        file to read from (as opposed to host and port)
-  --interval    The time between creating new files in hours
-  --output_dir  specifies the folder to write all the files
-  --mode        sets the statistics type to be decoded options: "SST", "XST", "BST"
-  --debug       takes no arguments, when used prints a lot of extra data to help with debugging
-  --decimation  Configure the writer to only store one every n samples. Saves storage space
+  -a  --host        the address to connect to
+  -p  --port        the port to use
+  -f  --file        file to read from (as opposed to host and port)
+  -i  --interval    The time between creating new files in hours
+  -o  --output_dir  specifies the folder to write all the files
+  -m  --mode        sets the statistics type to be decoded options: "SST", "XST", "BST"
+  -v  --debug       takes no arguments, when used prints a lot of extra data to help with debugging
+  -d  --decimation  Configure the writer to only store one every n samples. Saves storage space
   ```
 
 ##HFD5 structure