Update complexity definition (#2369)

* Update Lizard Doc

* Update complexity definition

* update-complexity-definition

Author: stefanvacareanu7

docs/faq/code-analysis/which-metrics-does-codacy-calculate.md

@@ -80,9 +80,9 @@ Codacy uses [cyclomatic complexity](https://en.wikipedia.org/wiki/Cyclomatic_com
 
 Codacy calculates complexity as follows:
 
--   The complexity value for each file is the highest cyclomatic complexity of the methods in the file.
+-   The complexity value of a file is the total sum of the cyclomatic complexities of all methods within it.
 -   A file is considered complex if its cyclomatic complexity value is higher than the threshold [**File is complex when over**](../../repositories-configure/adjusting-quality-goals.md).
--   The complexity value of a commit or pull request is the sum of the cyclomatic complexity of the files that were changed in the commit or pull request and that have a high complexity increase, defined as an increase of 4 or more.
+-   The complexity value of a commit or pull request is determined by the cyclomatic complexity of its changes.
 
 Codacy displays complexity on the following places:
 

docs/repositories/commits.md

@@ -111,7 +111,7 @@ The **Duplication** tab displays the lists of clones (duplicated code blocks) th
 The **Complexity** tab displays the complexity changes introduced by the {{ page.meta.page_name }}. Use the sidebar filters to filter the list by high increase (4 or more), low increase (1 to 3), or improvement (less than 0).
 
 !!! note
-    When calculating the complexity variation introduced by a {{ page.meta.page_name }}, Codacy only considers files with a high increase in complexity. For more information, see [how Codacy calculates cyclomatic complexity](../faq/code-analysis/which-metrics-does-codacy-calculate.md#complexity).
+    For more information, see [how Codacy calculates cyclomatic complexity](../faq/code-analysis/which-metrics-does-codacy-calculate.md#complexity).
 
 ![Complexity tab](./images/{{ page.meta.file_name }}-tab-complexity.png)