Updated to fix grammatical and punctuation issues (#93)

* Updated to fix grammatical and punctuation issues

feat: Grammatical and punctuation updates

1. Added missing quote in the second instance of close at line number 88
2. Corrected walkthrough as it is a single word
3. Updated line number 152 for grammatical mistake

* Added links and updated as per comments

Co-authored-by: Baiju Muthukadan <baiju.m.mail@gmail.com>

source/getting-started.rst

@@ -85,7 +85,7 @@ ensure that some results are found, make an assertion::
   assert "No results found." not in driver.page_source
 
 Finally, the browser window is closed.  You can also call `quit` method instead
-of `close`.  The `quit` will exit entire browser whereas close` will close one
+of `close`.  The `quit` will exit entire browser whereas `close` will close one
 tab, but if just one tab was open, by default most browser will exit entirely.::
 
   driver.close()
@@ -96,8 +96,8 @@ Using Selenium to write tests
 
 Selenium is mostly used for writing test cases.  The `selenium` package itself
 doesn't provide a testing tool/framework.  You can write test cases using
-Python's unittest module.  The other options for a tool/framework are py.test
-and nose.
+Python's unittest module.  The other options for a tool/framework are `pytest <https://docs.pytest.org/en/stable/>`_
+and `nose <https://nose.readthedocs.io/en/latest/>`_.
 
 In this chapter, we use `unittest` as the framework of choice.  Here is the
 modified example which uses unittest module.  This is a test for `python.org`
@@ -141,15 +141,15 @@ You can run the above test case from a shell like this::
 The above result shows that the test has been successfully completed.
 
 
-Walk through of the example
-~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Walkthrough of the example
+~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Initially, all the basic modules required are imported.  The `unittest
 <http://docs.python.org/library/unittest.html>`_ module is a built-in Python
 based on Java's JUnit.  This module provides the framework for organizing the
 test cases.  The `selenium.webdriver` module provides all the WebDriver
 implementations.  Currently supported WebDriver implementations are Firefox,
-Chrome, Ie and Remote.  The `Keys` class provide keys in the keyboard like
+Chrome, IE and Remote.  The `Keys` class provides keys in the keyboard like
 RETURN, F1, ALT etc.
 
 ::
@@ -269,4 +269,3 @@ dictionaries, you can specify the values explicitly::
      desired_capabilities={'browserName': 'htmlunit',
                            'version': '2',
                           'javascriptEnabled': True})
-