Addressing Formatting Issues

There were several formatting and layout issues
that are fixed in this commit.  Also changing
`RHOSTS` to `RHOST`.

Author: Nicholas Starke

documentation/modules/auxiliary/dos/http/ua_parser_js_redos.md

@@ -1,10 +1,14 @@
 ## Vulnerable Application
+
 This auxiliary module exploits a Regular Expression Denial of Service vulnerability
 in the npm module `ua-parser-js`.  Versions before 0.7.16 are vulnerable.  
 Any application that uses a vulnerable version of this module and calls the `getOS`
 or `getResult` functions will be vulnerable to this module.  An example server is provided
 below.
 
+## How to Install
+
+To install a vulnerable version of `ua-parser-js`, run:
 ```
 npm i [email protected]
 ```
@@ -21,7 +25,7 @@ Example steps in this format (is also in the PR):
 7. Open up a new terminal.
 8. Start msfconsole.
 9. `use auxiliary/dos/http/ua_parser_js_redos`.
-10. `set RHOSTS <IP>`.
+10. `set RHOST <IP>`.
 11. `run`.
 12. In vulnerable installations, Module should have positive output and the test application should accept no further requests.
 13. In non-vulnerable installations, module should have negative output and the test application should accept further requests.

modules/auxiliary/dos/http/ua_parser_js_redos.rb

@@ -9,25 +9,25 @@ class MetasploitModule < Msf::Auxiliary
 
   def initialize
     super(
-      'Name'           => 'ua-parser-js npm module ReDoS',
-      'Description'    => %q{
+      'Name'        => 'ua-parser-js npm module ReDoS',
+      'Description' => %q{
         This module exploits a Regular Expression Denial of Service vulnerability
         in the npm module "ua-parser-js". Server-side applications that use
         "ua-parser-js" for parsing the browser user-agent string will be vulnerable
         if they call the "getOS" or "getResult" functions. This vulnerability was
         fixed as of version 0.7.16.
       },
-      'References'     =>
+      'References'  =>
         [
           ['URL', 'https://github.com/faisalman/ua-parser-js/commit/25e143ee7caba78c6405a57d1d06b19c1e8e2f79'],
           ['CWE', '400'],
         ],
-      'Author'         =>
+      'Author'      =>
         [
           'Ryan Knell,  Sonatype Security Research',
           'Nick Starke, Sonatype Security Research',
         ],
-      'License'        =>  MSF_LICENSE
+      'License'     =>  MSF_LICENSE
     )
 
     register_options([