Update the docs

Author: mdmintz

README.md

@@ -693,9 +693,9 @@ self.driver.find_elements_by_partial_link_text("GitHub")
 ```
 (In general, you'll want to use the SeleniumBase versions of methods when available.)
 
-#### Retry Failing Tests Automatically
+#### Retrying failing tests automatically
 
-You can use ``--reruns #`` to retry failing tests that many times. Use ``--reruns-delay #`` to wait that many seconds between retries. Example:
+You can use ``--reruns NUM`` to retry failing tests that many times. Use ``--reruns-delay SECONDS`` to wait that many seconds between retries. Example:
 ```
 pytest --reruns 5 --reruns-delay 1
 ```

help_docs/customizing_test_runs.md

@@ -8,6 +8,7 @@ In addition to [settings.py](https://github.com/seleniumbase/SeleniumBase/blob/m
 * Choose additional variables to pass into tests
 * Change the automation speed (with Demo Mode)
 * Choose whether to run tests multi-threaded
+* Choose whether to retry failing tests
 * Choose a BrowserStack server to run on
 * Choose a Sauce Labs server to run on
 * Choose a TestingBot server to run on
@@ -34,6 +35,8 @@ nosetests test_suite.py --report --show_report
 
 pytest test_suite.py --headless -n 4
 
+pytest test_suite.py --reruns 1 --reruns-delay 2
+
 pytest test_suite.py --server=IP_ADDRESS --port=4444
 
 pytest test_suite.py --proxy=IP_ADDRESS:PORT
@@ -98,6 +101,13 @@ If you want to pass additional data from the command line to your tests, you can
 
 To run Pytest multithreaded on multiple CPUs at the same time, add ``-n=NUM`` or ``-n NUM`` on the command line, where NUM is the number of CPUs you want to use.
 
+#### **Retrying failing tests automatically:**
+
+You can use ``--reruns NUM`` to retry failing tests that many times. Use ``--reruns-delay SECONDS`` to wait that many seconds between retries. Example:
+```
+pytest --reruns 5 --reruns-delay 1
+```
+
 #### **Debugging tests:**
 
 **You can use the following code snippets in your scripts to help you debug issues:**