MINOR: fix Streams docs state.dir
Reviewers: Guozhang Wang
<tr class="row-even"><td>state.dir</td>
<td>High</td>
<td colspan="2">Directory location for state stores.</td>
- <td><code class="docutils literal"><span class="pre">/var/lib/kafka-streams</span></code></td>
+ <td><code class="docutils literal"><span class="pre">/tmp/kafka-streams</span></code></td>
</tr>
<tr class="row-odd"><td>timestamp.extractor</td>
<td>Medium</td>
