Update crash.md

Author: Ehesp

v3.0.*/crash/reference/crash.md

@@ -13,6 +13,12 @@ The following methods are accessed via the Crash instance `firebase.crash()`.
 
 Enables or disables crash reporting. 
 
+[collapse Example]
+```js
+firebase.crash().setCrashCollectionEnabled(false);
+```
+[/collapse]
+
 | Parameter |         |
 | --------- | ------- |
 | enabled   | **boolean** <br />Whether crash reporting is enabled or disabled |
@@ -22,21 +28,42 @@ Enables or disables crash reporting.
 
 Returns whether crash reporting is currently enabled or disabled.
 
+[collapse Example]
+```js
+firebase.crash().isCrashCollectionEnabled();
+  .then((isEnabled) => {
+    console.log('Crash reporting is enabled: ', isEnabled);
+  });
+```
+[/collapse]
+
 ### log
 [method]log(message) returns void;[/method]
 
 Logs a message that will be sent with a [ref crash#report].
 
+[collapse Example]
+```js
+firebase.crash().log('Something went really wrong!');
+```
+[/collapse]
+
 | Parameter |         |
 | --------- | ------- |
 | message   | **string** |
 
 ### logcat
-[method]isCrashCollectionEnabled(level, tag, message) returns void;[/method]
+[method]logcat(level, tag, message) returns void;[/method]
 
 [android] Logs a message that will appear in a subsequent crash report as well as in [logcat](https://developer.android.com/studio/command-line/logcat.html).
 [ios] Logs the message in the subsequest crash report only (same as log).
 
+[collapse Example]
+```js
+firebase.crash().logcat(1, 'CRASH', 'Something went really wrong!');
+```
+[/collapse]
+
 | Parameter |     |
 | --------- | --- |
 | level     | **number** |
@@ -50,6 +77,17 @@ Sends the crash report, along with any previous [ref crash#log] or [ref crash#lo
 
 > Reports are not realtime. They can take a number of hours to appear in the Firebase console.
 
+[collapse Example]
+```js
+try {
+  loadSomeService();
+} catch(e) {
+  firebase.crash().log('Service failed to load');
+  firebase.crash().report(e, 10);
+}
+```
+[/collapse]
+
 | Parameter |     |
 | --------- | --- |
 | error     | [**Error**](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error) <br /> A JavaScript Error. |