docs(@angular/cli): add details about generate command

* add an explanation about what --dry-run will output
* add an explanation about what --lint-fix will do
* add an explanation about how to set default  to use lint always
* add an explanation about what --verbose will do

Author: Pittan

docs/documentation/generate.md

@@ -15,3 +15,37 @@
  - [module](generate/module)
  - [pipe](generate/pipe)
  - [service](generate/service)
+
+## Options
+<details>
+  <summary>dry-run</summary>
+  <p>
+    <code>--dry-run</code> (aliases: <code>-d</code>) <em>default value: false</em>
+  </p>
+  <p>
+     Run through without making any changes. Will list all files that would have been created when running <code>ng generate</code>.
+  </p>
+</details>
+
+<details>
+  <summary>lint-fix</summary>
+  <p>
+    <code>--lint-fix</code> (aliases: <code>-lf</code>)
+  </p>
+  <p>
+    Use lint to fix files after generation.
+  </p>
+  <p>
+    You can also set default true to use lint every time after generation. To do this, change the value in <em>.angular-cli.json</em> (<code>apps[0].lintFix</code>).
+  </p>
+</details>
+
+<details>
+  <summary>verbose</summary>
+  <p>
+    <code>--verbose</code> (aliases: <code>-v</code>) <em>default value: false</em>
+  </p>
+  <p>
+    Adds more details to output logging.
+  </p>
+</details>