[DOC] Update book_offers documentation

- Use an orderbook that returns some output
- Use a limit to prevent the browser tab from crashing
- Removed language around pagination in websocket tool (not currently supported).

content/rippled.md

@@ -5891,15 +5891,13 @@ An example of the request format:
   "command": "book_offers",
   "taker": "r9cZA1mLK5R5Am25ArfXFmqgNwjZgnfk59",
   "taker_gets": {
-    "value": "1",
-    "currency": "EUR",
-    "issuer": "rvYAfWj5gh67oV6fW32ZzP3Aw4Eubs59B"
+    "currency": "XRP"
   },
   "taker_pays": {
-    "value": "1",
     "currency": "USD",
     "issuer": "rvYAfWj5gh67oV6fW32ZzP3Aw4Eubs59B"
-  }
+  },
+  "limit": 10
 }
 ```
 
@@ -5912,15 +5910,13 @@ An example of the request format:
         {
             "taker": "r9cZA1mLK5R5Am25ArfXFmqgNwjZgnfk59",
             "taker_gets": {
-                "currency": "EUR",
-                "issuer": "rvYAfWj5gh67oV6fW32ZzP3Aw4Eubs59B",
-                "value": "1"
+                "currency": "XRP"
             },
             "taker_pays": {
                 "currency": "USD",
                 "issuer": "rvYAfWj5gh67oV6fW32ZzP3Aw4Eubs59B",
-                "value": "1"
-            }
+            },
+            "limit": 10
         }
     ]
 }

js/apitool-websocket.js

@@ -219,9 +219,15 @@
     ledger_hash: void(0),
     ledger_index: void(0),
     taker: sample_address,
-    taker_gets: ripple.Amount.from_json('1/EUR/rvYAfWj5gh67oV6fW32ZzP3Aw4Eubs59B').to_json(),
-    taker_pays: ripple.Amount.from_json('1/USD/rvYAfWj5gh67oV6fW32ZzP3Aw4Eubs59B').to_json(),
-    _description: 'Returns the offers for an order book as one or more pages.',
+    taker_gets: {
+      currency: 'XRP'
+    },
+    taker_pays: {
+      currency: 'USD',
+      issuer: 'rvYAfWj5gh67oV6fW32ZzP3Aw4Eubs59B'
+    },
+    limit: 10,
+    _description: 'Returns a snapshot of the offers for an order book.',
     _link: 'rippled-apis.html#book-offers'
   });