Practical-3-Processing-16S-rRNA-amplicon-data.md

 ## DADA2 
-### 1.1 Getting things installed
+### 3.1 Getting things installed
 There's a lot of software we'll be using this week that isn't available on the servers already. In general, we've found the easiest way to install software that's not already available is to use the conda package manager. This is because you can't install software directly on the servers by yourself, and so with conda, you can install your own local versions of software. Another useful feature of conda is that you can create separate environments, which helps to avoid compatibility and dependency problems. We'll make use of these later in the week.
 
 To install conda, first change to your /home/ directory:
@@ -40,7 +40,7 @@ Now start up R, and we'll install the new packages:
                  type = "source",
                  dependencies = c("Depends", "Suggests", "Imports"))
 
-### 1.2 Processing our data with DADA2
+### 3.2 Processing our data with DADA2
 First let's go back to our data directory
 
     > setwd("/bioinf/home/your_username/day_1/16S_amplicons/demultiplexed")