fix link for main branch

topics/contributing/tutorials/create-new-slides/tutorial.md

@@ -240,7 +240,7 @@ The prefix "Figure 1." is automatically added before its caption. This is done w
 
 As an example for this image:
 
-![alt text]({% link topics/metagenomics/images/plasmid-metagenomics-nanopore/sequence_method.jpg %} "Example of an image with a caption ")
+![alt text]({% link topics/microbiome/images/plasmid-metagenomics-nanopore/sequence_method.jpg %} "Example of an image with a caption ")
 
 {% raw %}
 ```markdown