spark git commit: [SPARK-16485][DOC][ML] Fixed several inline formatting in ml features doc

[srowen]

Repository: spark
Updated Branches:
  refs/heads/branch-2.0 d9bd066b9 -> f0d05f669


[SPARK-16485][DOC][ML] Fixed several inline formatting in ml features doc

## What changes were proposed in this pull request?

Fixed several inline formatting in ml features doc.

Before:

<img width="475" alt="screen shot 2016-07-14 at 12 24 57 pm" 
src="https://cloud.githubusercontent.com/assets/717363/16827974/1e1b6e04-49be-11e6-8aa9-4a0cb6cd3b4e.png";>

After:

<img width="404" alt="screen shot 2016-07-14 at 12 25 48 pm" 
src="https://cloud.githubusercontent.com/assets/717363/16827976/2576510a-49be-11e6-96dd-92a1fa464d36.png";>

## How was this patch tested?

Genetate the docs locally by `SKIP_API=1 jekyll build` and view it in the 
browser.

Author: Shuai Lin <linshuai2...@gmail.com>

Closes #14194 from lins05/fix-docs-formatting.

(cherry picked from commit 3b6e1d094e153599e158331b10d33d74a667be5a)
Signed-off-by: Sean Owen <so...@cloudera.com>


Project: http://git-wip-us.apache.org/repos/asf/spark/repo
Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/f0d05f66
Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/f0d05f66
Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/f0d05f66

Branch: refs/heads/branch-2.0
Commit: f0d05f669b4e7be017d8d0cfba33c3a61a1eef8f
Parents: d9bd066
Author: Shuai Lin <linshuai2...@gmail.com>
Authored: Mon Jul 25 20:26:55 2016 +0100
Committer: Sean Owen <so...@cloudera.com>
Committed: Mon Jul 25 20:27:04 2016 +0100

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 docs/ml-features.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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http://git-wip-us.apache.org/repos/asf/spark/blob/f0d05f66/docs/ml-features.md
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diff --git a/docs/ml-features.md b/docs/ml-features.md
index e7d7ddf..6020114 100644
--- a/docs/ml-features.md
+++ b/docs/ml-features.md
@@ -216,7 +216,7 @@ for more details on the API.
 
 
[RegexTokenizer](api/scala/index.html#org.apache.spark.ml.feature.RegexTokenizer)
 allows more
  advanced tokenization based on regular expression (regex) matching.
- By default, the parameter "pattern" (regex, default: \\s+) is used as 
delimiters to split the input text.
+ By default, the parameter "pattern" (regex, default: `"\\s+"`) is used as 
delimiters to split the input text.
  Alternatively, users can set parameter "gaps" to false indicating the regex 
"pattern" denotes
  "tokens" rather than splitting gaps, and find all matching occurrences as the 
tokenization result.
 
@@ -815,7 +815,7 @@ The rescaled value for a feature E is calculated as,
 `\begin{equation}
   Rescaled(e_i) = \frac{e_i - E_{min}}{E_{max} - E_{min}} * (max - min) + min
 \end{equation}`
-For the case `E_{max} == E_{min}`, `Rescaled(e_i) = 0.5 * (max + min)`
+For the case `$E_{max} == E_{min}$`, `$Rescaled(e_i) = 0.5 * (max + min)$`
 
 Note that since zero values will probably be transformed to non-zero values, 
output of the transformer will be `DenseVector` even for sparse input.
 


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