[MINOR][DOCS] Fix a link in "Compatibility with Apache Hive"

## What changes were proposed in this pull request?

This PR fixes a broken link as below:

**Before:**

<img width="678" alt="2018-03-05 12 23 58" src="https://user-images.githubusercontent.com/6477701/36957930-6d00ebda-207b-11e8-9ae4-718561b0428c.png">

**After:**

<img width="680" alt="2018-03-05 12 23 20" src="https://user-images.githubusercontent.com/6477701/36957934-6f834ac4-207b-11e8-97b4-18832b2b80cd.png">

Also see https://spark.apache.org/docs/2.3.0/sql-programming-guide.html#compatibility-with-apache-hive

## How was this patch tested?

Manually tested. I checked the same instances in `docs` directory. Seems this is the only one.

Author: hyukjinkwon <[email protected]>

Closes #20733 from HyukjinKwon/minor-link.

(cherry picked from commit 269cd53)
Signed-off-by: gatorsmile <[email protected]>

Author: HyukjinKwon

docs/sql-programming-guide.md

@@ -2219,7 +2219,7 @@ referencing a singleton.
 Spark SQL is designed to be compatible with the Hive Metastore, SerDes and UDFs.
 Currently Hive SerDes and UDFs are based on Hive 1.2.1,
 and Spark SQL can be connected to different versions of Hive Metastore
-(from 0.12.0 to 2.1.1. Also see [Interacting with Different Versions of Hive Metastore] (#interacting-with-different-versions-of-hive-metastore)).
+(from 0.12.0 to 2.1.1. Also see [Interacting with Different Versions of Hive Metastore](#interacting-with-different-versions-of-hive-metastore)).
 
 #### Deploying in Existing Hive Warehouses