fix images & links in README (#485)

README.md

@@ -3,7 +3,7 @@
 
 
 <p align="center">
-<img src="docs/assets/images/crowdsec2.png" alt="CrowdSec" title="CrowdSec" width="400" height="240"/>
+<img src="docs/assets/images/crowdsec_logo.png" alt="CrowdSec" title="CrowdSec" width="400" height="240"/>
 </p>
 
 </br>
@@ -115,28 +115,28 @@ our [documentation](https://doc.crowdsec.net).
 
 <details open>
   <summary>User is assisted during setup, providing functional out-of-the-box setup</summary>
-  <img src="https://github.com/crowdsecurity/crowdsec/blob/master/docs/assets/images/crowdsec_install.gif">
+  <img src="docs/assets/images/crowdsec_install.gif">
 </details>
 
 ### Out of the box detection
 
 <details>
   <summary>Baseline detection is effective out-of-the-box, no fine-tuning required (click to expand)</summary>
-  <img src="https://github.com/crowdsecurity/crowdsec/blob/master/docs/assets/images/out-of-the-box-protection.gif">
+  <img src="docs/assets/images/out-of-the-box-protection.gif">
 </details>
 
 ### Easy bouncer deployment
 
 <details>
   <summary>It's trivial to add bouncers to enforce decisions of crowdsec (click to expand)</summary>
-  <img src="https://github.com/crowdsecurity/crowdsec/blob/master/docs/assets/images/blocker-installation.gif">
+  <img src="docs/assets/images/blocker-installation.gif">
 </details>
 
 ### Easy dashboard access
 
 <details>
   <summary>It's easy to deploy a metabase interface to view your data simply with cscli (click to expand)</summary>
-  <img src="https://github.com/crowdsecurity/crowdsec/blob/master/docs/assets/images/cscli-metabase.gif">
+  <img src="docs/assets/images/cscli-metabase.gif">
 </details>
 
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