Some typos in README

Here're two typos that I remember:

**Bash** 
```

for filename in "ls /home/justincohler/*";
do
...
done;

```
I think the double quotation should be changed to back ticks

**curl**

`curl -d "{\"cnetid\": \"YOUR_CNET_ID\"}" -H "Content-Type: application/json" -X POST http:///10.150.152.5:5000/api`

There should only be 2 slashes after http: