[SPARK-36791][DOCS] Fix spelling mistakes in running-on-yarn.md file …

…where JHS_POST should be JHS_HOST

### What changes were proposed in this pull request?
The PR fixes SPARK-36791 by replacing JHS_POST with JHS_HOST

### Why are the changes needed?
There are spelling mistakes in running-on-yarn.md file where JHS_POST should be JHS_HOST

### Does this PR introduce any user-facing change?
No

### How was this patch tested?
Not needed for docs

Closes #34031 from jiaoqingbo/jiaoqingbo.

Authored-by: jiaoqb <jiaoqb@asiainfo.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
(cherry picked from commit 8a1a91b)
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>

docs/running-on-yarn.md

@@ -601,7 +601,7 @@ For example, suppose you would like to point log url link to Job History Server
 
 <code>&#123;&#123;HTTP_SCHEME&#125;&#125;&lt;JHS_HOST&gt;:&lt;JHS_PORT&gt;/jobhistory/logs/&#123;&#123;NM_HOST&#125;&#125;:&#123;&#123;NM_PORT&#125;&#125;/&#123;&#123;CONTAINER_ID&#125;&#125;/&#123;&#123;CONTAINER_ID&#125;&#125;/&#123;&#123;USER&#125;&#125;/&#123;&#123;FILE_NAME&#125;&#125;?start=-4096</code>
 
-NOTE: you need to replace `<JHS_POST>` and `<JHS_PORT>` with actual value.
+NOTE: you need to replace `<JHS_HOST>` and `<JHS_PORT>` with actual value.
 
 # Resource Allocation and Configuration Overview