Remove runaway quotes

  - Causing jekyll build to fail

Author: vinisalazar

topics/microbiome/tutorials/metagenomics-assembly/tutorial.md

@@ -16,7 +16,7 @@ objectives:
   - "Explain the difference between reads, contigs and scaffolds."
   - "Explain how tools based on de Bruijn graph work."
   - "Evaluate the Quality of the Assembly with QUAST, Bowtie2, and CoverM-Contig."
-  - "Construct and apply simple assembly pipelines on short read data.""
+  - "Construct and apply simple assembly pipelines on short read data."
 time_estimation: "2H"
 key_points:
   - "Assembly groups reads into contigs and scaffolds."