renamed image elements as requested in review

website/docs/webdev/md_components/site_footer_components/usage_markdown.md

@@ -1,6 +1,6 @@
 The core footer provides supplementary information such as copyright, legal, privacy, social media, contact information and links to other important sites within the EEA. It is always placed at the bottom of every page. <b> Always use a footer when building your page </b>
 
-![](../../md_components/static/footer_elements.png)
+![](../../md_components/static/footer-elements.png)
 
 ### Anatomy
 
@@ -10,7 +10,7 @@ The core footer provides supplementary information such as copyright, legal, pri
 | 2 | **EIONET logo**              | yes       | Logo of European Environment Information and Observation Network |
 | 3 | **Contact information**<br />     | yes       | Links to the associated services available through the EEA site |
 | 4 | **Social media**                                         | yes       | Links to social EEA's social media |
-| 5 | **Thematic information platforms**                                         | yes       |  European Information Systems 
+| 5 | **Thematic information platforms**                                         | yes       |  European Information Systems
 | 6 | **Legal navigation**                                         | yes       | Contains legal information links - consistent throughout the family sites |
 | 7 | **Content owner details**                                         | yes        | Indicates ownership over the site's content |
 

website/docs/webdev/md_components/site_header_components/usage_markdown.md

@@ -1,6 +1,6 @@
 The EEA header shows users that they are on EEA portal and which service they are using.
 
-![](../../md_components/static/headerElements.png)
+![](../../md_components/static/header-elements.png)
 
 ### Anatomy
 
@@ -10,7 +10,7 @@ The EEA header shows users that they are on EEA portal and which service they ar
 | 2 | **Environmental Information systems**              | yes       | Complete list of EEA's thematic websites |
 | 3 | **Languages**<br />     | yes       | Language select |
 | 4 | **EEA Identity**                                         | yes       | Logo of European Environmental Agency |
-| 5 | **Menu**                                         | yes       |  Main navigation of the website 
+| 5 | **Menu**                                         | yes       |  Main navigation of the website
 | 6 | **Search**                                         | yes       | 	Enables the user to search and retrieve related information from using keywords |