add references and change to classic sentence for molecular mechanism

content/3.defense-systems/dodola.md

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 title: Dodola
 layout: article
@@ -22,11 +20,12 @@ relevantAbstracts:
 
 ## Description
 
-Dodola is named after a figure from Slavic mythology, often associated with rain and fertility. The Dodola defense system was first discovered through its common association with known defense systems, and characterized in B. subtilis, demonstrating its efficacy against the SPP1 phage. It is composed of two proteins, DolA and DolB
+Dodola is named after a figure from Slavic mythology, often associated with rain and fertility. The Dodola defense system was first discovered through its common association with known defense systems, and characterized in B. subtilis, demonstrating its efficacy against the SPP1 phage :ref{doi=10.1016/j.chom.2022.09.017}.
+Dodola is composed of two proteins, DolA and DolB. DolA contains a DUF6414 domain, and DolB contains a ClpB-like domain.
 
 ## Molecular mechanisms
 
-The molecular mechanism is unknown. DolA contains a DUF6414 domain, and DolB contains a ClpB-like domain.
+As far as we are aware, the molecular mechanism is unknown.
 
 ## Example of genomic structure