Update README

README.md

@@ -1,21 +1,39 @@
 # horsay
-Takes a line of input and formats it in a text bubble next to a horse.
-
 ```
-$ horsay
+~$ horsay --help
+usage: horsay [-h] [-u] [-w MAX_WIDTH] [-b BREAK_AT]
+
+Displays input straight from the horse's mouth.
+
+optional arguments:
+  -h, --help            show this help message and exit
+  -u, --unicode         Use fancier lines for the text bubble
+  -w MAX_WIDTH, --max-width MAX_WIDTH
+                        Maximum width of output (default: 80)
+  -b BREAK_AT, --break-at BREAK_AT
+                        String of characters to break words at (default: space
+                        and -)
+
+~$ horsay
 Hello, world!
      ./|,,/|   
-    <   o o)   ╭───────────────╮
+    <   o o)   +---------------+
-   <\ (    | ──┤ Hello, world! │
+   <\ (    | --| Hello, world! |
-  <\\  |\  |   ╰───────────────╯
+  <\\  |\  |   +---------------+
  <\\\  |(__)   
 <\\\\  |       
-$ echo Hello, world! | horsay
+~$ echo "Hello, pipe!" | horsay
      ./|,,/|   
-    <   o o)   ╭───────────────╮
+    <   o o)   +--------------+
-   <\ (    | ──┤ Hello, world! │
+   <\ (    | --| Hello, pipe! |
-  <\\  |\  |   ╰───────────────╯
+  <\\  |\  |   +--------------+
+ <\\\  |(__)   
+<\\\\  |       
+~$ echo "Hello, fancy box!" | horsay -u
+     ./|,,/|   
+    <   o o)   ╭───────────────────╮
+   <\ (    | ──┤ Hello, fancy box! │
+  <\\  |\  |   ╰───────────────────╯
  <\\\  |(__)   
 <\\\\  |       
-
 ```