spelling error

### What is this PR for?
A few sentences describing the overall goals of the pull request's commits.
First time? Check out the contributing guide - https://zeppelin.apache.org/contribution/contributions.html

### What type of PR is it?
[ Documentation ]

### Todos
* [x] - Task

### What is the Jira issue?
* Open an issue on Jira https://issues.apache.org/jira/browse/ZEPPELIN/
* Put link here, and add [ZEPPELIN-*Jira number*] in PR title, eg. [ZEPPELIN-533]

### How should this be tested?
Outline the steps to test the PR here.

### Screenshots (if appropriate)

### Questions:
* Does the licenses files need update?
* Is there breaking changes for older versions?
* Does this needs documentation?

spelling error

responce => response

seprated => separated

Author: terrylee <hunylee@users.noreply.github.com>
Author: Mina Lee <minalee@apache.org>

Closes #1544 from hunylee/patch-1 and squashes the following commits:

1095a19 [terrylee] Merge pull request #1 from minahlee/fix_typo
9c26998 [terrylee] correct separated
1a3e187 [Mina Lee] fix typo
0490435 [terrylee] spelling error

docs/displaysystem/basicdisplaysystem.md

@@ -25,7 +25,7 @@ limitations under the License.
 
 ## Text
 
-By default, Apache Zeppelin prints interpreter responce as a plain text using `text` display system.
+By default, Apache Zeppelin prints interpreter response as a plain text using `text` display system.
 
 <img src="/assets/themes/zeppelin/img/screenshots/display_text.png" />
 
@@ -41,7 +41,7 @@ With `%html` directive, Zeppelin treats your output as HTML
 
 ## Table
 
-If you have data that row seprated by '\n' (newline) and column separated by '\t' (tab) with first row as header row, for example
+If you have data that row separated by '\n' (newline) and column separated by '\t' (tab) with first row as header row, for example
 
 <img src="/assets/themes/zeppelin/img/screenshots/display_table.png" />