Added windows & unix style command line arguments (#1)

* Added support for unix and windows style arguments

* Added new command line arguments to README

* Fixed bug where --version and --help would run if more arguments were typed in

README.md

@@ -10,6 +10,9 @@ The location to a source file must be supplied.
 #### From the command line
 ```
 python gus.py example.html
+python gus.py -f example.html or python gus.py --file example.html to check a file
+python gus.py -v or python gus.py --version for version info
+python gus.py -h or python gus.py --help for help
 ```
 #### From the python shell
 ```

gus.py

@@ -88,10 +88,19 @@ def get_help():
     help = open('help.txt').read()
     print(help)
   except:
-    print("error printing help")  
+    print("error printing help")
 
 if __name__ == "__main__":
-  if (len(sys.argv)==1):
-    get_help()                  # calls for help if no arg provided
+  if len(sys.argv) == 1:
+    get_help()  # calls for help if no arg provided
+  elif len(sys.argv) == 2 and str(sys.argv[1])[:1] != "-":
+    tavo(str(sys.argv[1])) # send command line arg to main function
   else:
-    tavo(str(sys.argv[1]))       # send command line arg to main function
+    if len(sys.argv) == 3 and (sys.argv[1] == "-f" or sys.argv[1] == "--file"):
+      tavo(str(sys.argv[2])) # send command line arg to main function
+    elif len(sys.argv) == 2 and (sys.argv[1] == "-v" or sys.argv[1] == "--version"):
+      print('Get-Url-Status (GUS) Text-As-Visual-Output (TAVO) version 0.1') # print version info
+    elif len(sys.argv) == 2 and (sys.argv[1] == "-h" or sys.argv[1] == "--help"):
+        get_help()
+    else:
+      print('invalid argument error') # print if user inputs wrong argument or if there are too many arguments

help.txt

@@ -5,12 +5,23 @@
 GUS can be used from the command line or python shell
 The location to a source file must be supplied.
 
-From the command line:
+To check files from the command line:
 >>> python gus.py example.txt
 or
 >>> python gus.py ~/another/file.html
+or 
+>>> python gus.py -f or --file example.txt
+or
+>>> python gus.py -f or --file ~/another/file.html
+
+To check version information:
+>>> python gus.py -v or --version
+
+To get help:
+>>> python gus.py -h or --help
+
 
-From the python shell:
+To check files from the python shell:
 >>> import gus
 >>> gus.tavo("your.filename.here")