Docs: Update Footer in Litmus Experiments (#5306)

* feat: add new SVG icons for LinkedIn and Litmus

Signed-off-by: Aditya Ray <96347576+adi-ray@users.noreply.github.com>

* fix: update Litmus logo and copyright year in footer, add LinkedIn icon

Signed-off-by: Aditya Ray <96347576+adi-ray@users.noreply.github.com>

---------

Signed-off-by: Aditya Ray <96347576+adi-ray@users.noreply.github.com>
Co-authored-by: Pritesh Kiri <77957844+PriteshKiri@users.noreply.github.com>

Author: adi-ray

mkdocs/overrides/exp-docs-icons/Linkedin.png

@@ -214,8 +214,8 @@ <h3 style="font-size: 22px;">
         <br>
         <div class="more_resource"  style="display: flex;padding:15px 0px">
             <div style="display: flex;margin: auto">
-                <img src="exp-docs-icons/litmus.svg" alt="litmus"/>
-                <p style="font-size: 14px; margin-top: 15px; margin-left: 10px; color: #777288;"> © 2021 LitmusChaos Authors</p>
+                <img src="exp-docs-icons/litmus-icon-color.svg" alt="litmus"/>
+                <p style="font-size: 14px; margin-top: 15px; margin-left: 10px; color: #777288;"> © 2025 LitmusChaos Authors</p>
             </div>
             <div class="fol" style="display: inline-flex;">
                 <p style="font-size: 14px;margin-top:0.5px; color: #777288;"> Follow us on:</p>
@@ -224,6 +224,7 @@ <h3 style="font-size: 22px;">
                 <a target="_" href="https://dev.to/t/litmuschaos/latest"><img src="exp-docs-icons/Dev.svg" alt="dev" style="margin-left: 10px;"/></a>
                 <a target="_" href="https://twitter.com/LitmusChaos"><img src="exp-docs-icons/Twitter.svg" alt="twitter" style="margin-left: 10px;"/></a>
                 <a target="_" href="https://www.youtube.com/channel/UCa57PMqmz_j0wnteRa9nCaw"><img src="exp-docs-icons/Youtube.svg" alt="youtube" style="margin-left: 10px;"/></a>
+                <a target="_" href="https://www.linkedin.com/company/litmuschaos"><img src="exp-docs-icons/Linkedin.png" alt="linkedin" style="margin-left: 10px; width: 22px;"/></a>
             </div>
         </div>
     </div>