Add documentation for the module.

Sorry, being nit picky.

General style guide: https://www.drupal.org/node/2181737

Sometimes less is more.

INTRODUCTION
------------

The Search Configuration module has two primary functions, to alter how the
search form is rendered and to provide restrictions on the content that is
exposed when searching.

 * For a full description of the module, visit the project page:
   https://drupal.org/project/search_config

 * To submit bug reports and feature suggestions, or to track changes:
   https://drupal.org/project/issues/search_config

More whitespace would help a lot. i.e. Spaces between paragraphs:

....users during the search mechanism.

The key features are listed below:

Fairly verbose read, less text can be easier to follow:

CONFIGURATION
-------------

* Form Appearance

  Navigate to Administration » Configuration » Search » ??

  "Labels and string overrides" fieldset

  This section allows you to configure the field labels. Options include:
    - alter the field titles of the basic and advanced search forms
    - title position. These can be positioned above (default), below or hidden

.....

* Configure user permissions

  Navigate to Administration » People » Permissions:

  - Exclude nodes from search results

    This allows users with this permission to flag content as not to be searched.

Note there is a typo in exlusions / exlude, should be exclude / exclusions: #2785999: Search Config Permissions

Really do not see the need for "Functions used in the module:" section.

Generally do a blurb about the primary maintainers, adding full contributor list would get very large very fast :)

I'm not sure if I'm active or not, lol

And it is good to do the supporting companies & websites. One free back link for SEO.

MAINTAINERS
-----------
Current maintainers:
Naveen Valecha - https://www.drupal.org/u/naveenvalecha>
Joyce George - <https://www.drupal.org/u/joyceg>

Past maintainers:
Joseph Yanick - https://www.drupal.org/u/jbomb

This project has been sponsored by:
* Google
  This module has been ported to Drupal 8 as part of the Google Summer of Code 
  2016 project. Visit https://developers.google.com/open-source/gsoc/ for more
  information.

* Acquia
  Helped with time to mentor the GSOC student for the Drupal 8 port.
  Visit http://acquia.com for more information.

Others??

* GreenAcorn
  Drupal 7 port. Visit http://greenacorn.com.au for more information.

1. +++ b/README.txt
   @@ -1,3 +1,92 @@
   +See https://www.drupal.org/docs/8/extending-drupal/installing-contributed-modules for further information.
   

   Add the link of installing d8 modules

2. +++ b/README.txt
   @@ -1,3 +1,92 @@
   +CONFIGURATION
   

   Add more details in the configuration section.

3. +++ b/README.txt
   @@ -1,3 +1,92 @@
   +  Navigate to Administration » Configuration » Search » ??
   

   Why ??

4. +++ b/README.txt
   @@ -1,3 +1,92 @@
   +.....
   

   Remove this line.

5. +++ b/README.txt
   @@ -1,3 +1,92 @@
   +This project has been sponsored by:
   +* Google
   +  This module has been ported to Drupal 8 as part of the Google Summer of Code
   +  2016 project. Visit https://developers.google.com/open-source/gsoc/ for more
   +  information.
   +
   +* Acquia
   +  Helped with time to mentor the GSOC student for the Drupal 8 port.
   +  Visit http://acquia.com for more information.
   +
   +* GreenAcorn
   +  Drupal 7 port. Visit http://greenacorn.com.au for more information.
    
   

   Remove this section. Its worth mentioned on the project page.

looks good

Committed and pushed to 8.x-1.x