formatting fix for LDAP realm documentation

spacing of "```" block causing it to be ignored, and the rest of the contents to be rendered incorrectly.

### What is this PR for?
The LDAP section of the documentation for zeppelin-0.7.3 renders incorrectly, here:

http://zeppelin.apache.org/docs/0.7.3/security/shiroauthentication.html

It looks correct on GitHub, but not on the standalone site. This should fix it.

### What type of PR is it?
[Documentation | Bug Fix]

### Questions:
* Does the licenses files need update? no
* Is there breaking changes for older versions? none known
* Does this needs documentation? no
1 file changed
tree: df8e6ef57f0e8dc73922df3b2651441cc6528e13
  1. .github/
  2. _tools/
  3. alluxio/
  4. angular/
  5. beam/
  6. bigquery/
  7. bin/
  8. cassandra/
  9. conf/
  10. dev/
  11. docs/
  12. elasticsearch/
  13. file/
  14. flink/
  15. geode/
  16. hbase/
  17. helium-dev/
  18. ignite/
  19. interpreter/
  20. jdbc/
  21. kylin/
  22. lens/
  23. licenses/
  24. livy/
  25. markdown/
  26. notebook/
  27. pig/
  28. postgresql/
  29. python/
  30. r/
  31. scalding/
  32. scio/
  33. scripts/
  34. shell/
  35. spark/
  36. spark-dependencies/
  37. testing/
  38. zeppelin-display/
  39. zeppelin-distribution/
  40. zeppelin-examples/
  41. zeppelin-interpreter/
  42. zeppelin-server/
  43. zeppelin-web/
  44. zeppelin-zengine/
  45. .appveyor.yml
  46. .gitignore
  47. .travis.yml
  48. LICENSE
  49. NOTICE
  50. pom.xml
  51. README.md
  52. Roadmap.md
  53. SECURITY-README.md
  54. STYLE.md
  55. travis_check.py
README.md

Apache Zeppelin

Documentation: User Guide
Mailing Lists: User and Dev mailing list
Continuous Integration: Build Status
Contributing: Contribution Guide
Issue Tracker: Jira
License: Apache 2.0

Zeppelin, a web-based notebook that enables interactive data analytics. You can make beautiful data-driven, interactive and collaborative documents with SQL, Scala and more.

Core feature:

  • Web based notebook style editor.
  • Built-in Apache Spark support

To know more about Zeppelin, visit our web site http://zeppelin.apache.org

Getting Started

Install binary package

Please go to install to install Apache Zeppelin from binary package.

Build from source

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