Docs: Fix URL of the images in the docs(#2382)

docs/source/architecture.md

@@ -2,7 +2,7 @@
 
 EvalAI helps researchers, students, and data scientists to create, collaborate, and participate in various AI challenges organized around the globe. To achieve this, we leverage some of the best open source tools and technologies.
 
-<img src="/_static/img/architecture.png">
+<img src="_static/img/architecture.png">
 
 #### Django
 

docs/source/host_challenge.md

@@ -29,7 +29,7 @@ We categorize the challenges in two categories:
 
    Some of the popular prediction upload based challenges that we have hosted are shown below:
 
-   <a href="https://evalai.cloudcv.org/web/challenges/list" target="_blank"><img src="/_static/img/prediction-upload-challenges.png"></a><br />
+   <a href="https://evalai.cloudcv.org/web/challenges/list" target="_blank"><img src="_static/img/prediction-upload-challenges.png"></a><br />
 
    If you are interested in hosting prediction upload based challenges, then [click here](/host_challenge.html#host-prediction-upload-based-challenge).
 
@@ -39,7 +39,7 @@ We categorize the challenges in two categories:
 
    Some of the popular code upload based challenges that we have hosted are shown below:
 
-   <a href="https://evalai.cloudcv.org/web/challenges/list" target="_blank"><img src="/_static/img/code-upload-challenges.png"></a>
+   <a href="https://evalai.cloudcv.org/web/challenges/list" target="_blank"><img src="_static/img/code-upload-challenges.png"></a>
 
    If you are interested in hosting code upload based challenges, then [click here](/host_challenge.html#host-prediction-upload-based-challenge).
 

docs/source/intro.md

@@ -2,7 +2,7 @@
 
 [EvalAI] aims to build a centralized platform to host, participate, and collaborate in Artificial Intelligence (AI) challenges organized around the globe and hope to help in benchmarking progress in AI.
 
-<img src="/_static/img/teaser.png">
+<img src="_static/img/teaser.png">
 
 ## Features