Update README.md

README.md

@@ -36,12 +36,14 @@ pip3 install ete3
 
 The first time the annotation script is run, it will download the NCBI taxonomy database to your $HOME. Keep in mind this will increase the running time the first time it is run.
 
-Run the annotation script with:
+Run the annotation script from the source directory with:
 ```bash
 chmod +x scripts/append_taxatree_to_reads.py
 scripts/append_taxatree_to_reads.py -i $input_reads.fastq.gz -k $kraken_out_file -o $reads_with_taxatree.fastq.gz
 ```
 
+If you have built & installed taxaSPAdes or are using the prebuilt binaries, you can find the script at ```$install_dir/bin/append_taxatree_to_reads.py```
+
 Optional options are:
 ```--main_ranks or -m```
 Flag to keep only major ranks (domain, kingdom, phylum, class, order, family, genus, species) when annotating the taxonomy.