[MINOR][DOCS] Remove Apache Spark Wiki address

## What changes were proposed in this pull request? According to the notice of the following Wiki front page, we can remove the obsolete wiki pointer safely in `README.md` and `docs/index.md`, too. These two lines are the last occurrence of that links. ``` All current wiki content has been merged into pages at http://spark.apache.org as of November 2016. Each page links to the new location of its information on the Spark web site. Obsolete wiki content is still hosted here, but carries a notice that it is no longer current. ``` ## How was this patch tested? Manual. - `README.md`: https://github.com/dongjoon-hyun/spark/tree/remove_wiki_from_readme - `docs/index.md`: ``` cd docs SKIP_API=1 jekyll build ``` ![screen shot 2016-12-09 at 2 53 29 pm](https://cloud.githubusercontent.com/assets/9700541/21067323/517252e2-be1f-11e6-85b1-2a4471131c5d.png) Author: Dongjoon Hyun <[email protected]> Closes #16239 from dongjoon-hyun/remove_wiki_from_readme.
apache · f3a3fed76cb74ecd0f46031f337576ce60f54fb2 · dongjoon-hyun committed with srowen Dec 10, 2016

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srowen Sean Owen

GPG key ID: BEB3956D6717BDDC Learn about signing commits · Dec 10, 2016 · f3a3fed
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commit f3a3fed76cb74ecd0f46031f337576ce60f54fb2
Unified Split

Showing with 1 addition and 3 deletions.

+1 −2 README.md

+0 −1 docs/index.md
diff --git a/README.md b/README.md
@@ -13,8 +13,7 @@ and Spark Streaming for stream processing.
 ## Online Documentation
 
 You can find the latest Spark documentation, including a programming
-guide, on the [project web page](http://spark.apache.org/documentation.html)
-and [project wiki](https://cwiki.apache.org/confluence/display/SPARK).
+guide, on the [project web page](http://spark.apache.org/documentation.html).
 This README file only contains basic setup instructions.
 
 ## Building Spark
diff --git a/docs/index.md b/docs/index.md
@@ -131,7 +131,6 @@ options for deployment:
 **External Resources:**
 
 * [Spark Homepage](http://spark.apache.org)
-* [Spark Wiki](https://cwiki.apache.org/confluence/display/SPARK)
 * [Spark Community](http://spark.apache.org/community.html) resources, including local meetups
 * [StackOverflow tag `apache-spark`](http://stackoverflow.com/questions/tagged/apache-spark)
 * [Mailing Lists](http://spark.apache.org/mailing-lists.html): ask questions about Spark here