Update README.md

README.md

@@ -25,6 +25,27 @@ d[1].taxon_id.should == 2515075008
 
 d[0].attributes['Status'].should == 'Finished' #=> the rest are in the attributes array
 ```
+## How to get the metadata file
+
+Go to IMG > Genome Browser: http://img.jgi.doe.gov/cgi-bin/w/main.cgi?section=TaxonList&page=taxonListAlpha
+
+In the Table Configuration section:
+* Genome Field     > Click All
+* Project Metadata > Click All
+* Data Statistics  > Click All
+
+Click Display Genomes Again. In the Genome Browser section > Click Select All. Finally, click the Export button.
+
+PS/ Don't trust the IMG metadata _too much_. There are some big mistakes, e.g. in the 16S copy number
+
+PS2/ What have I done to create the FIXED metadata?
+* I have deleted two occurences of "\r" (^M) by ""
+* taxonoid 2515154013 has two extra fields: remove the two cells containing "Human wound, cranian"
+* Replace cells containing "-1" by ""
+* Replaced 'Marine archaeal group 1 BG20 (Nitrosoarchaeum limnia BG20)' by 'Nitrosoarchaeum limnia BG20'
+
+(Download instructions kindly contributed by @fangly / Florent Angly)
+
         
 ## Project home page