anchor.diff:  Term Source Ref and Term Accession Number column headers following it. While filling up the
   data (rows) in the file you may choose to provide blank values if you don't have the information
   for it. In the below example you can always opt to not provide the Term Source Ref and
  -Term Accession Number but the column headers must be kept intact as in the example below
  +Term Accession Number but the column headers must be present as in the example below
   
       Example : Characteristics[Organism]	Term Source REF	Term Accession Number
   
   
  -2. All samples might not have all the data as per the columns specified in the TSV file, please remember
  -to add a tab if you are not specifying any value. Example if you are not specifying Term Source Ref
  -and Term Accession Number for all characteristics you still need to provide the tabs. This will help us
  -to parse the file correctly
  +2. All samples might not have all the information as per the columns specified in the
  +TSV file, please remember not to miss the tab delimiter if you are not specifying any value.
  +Example if you are not specifying Term Source Ref and Term Accession Number
  +for any/ all characteristics please don't forget you need to provide the tab delimiter.
  +This will help us to parse the file correctly
   
       Example : Characteristics[Organism]	Term Source REF	Term Accession Number
                 Homo sapiens
  
positive.code: |Columns |Description | Mandatory/Optional
  
  |Source Name | Source Name can be the name/ID of your investigation, study, assay,
  project or even sample. If you don't have a source name then you can keep it blank. Remember
  not to miss the tab delimiter even if you are keeping Source Name as blank | Optional
  
  |Sample Name | The name of the sample, mandatory, and expected to be unique
  
negative.code: == Requirements
  - You need an AAP account or a WEBIN submission account to proceed with this recipe
  Please refer our link:../guides/authentication[AUTHENTICATION GUIDE] for more information
  
  == Important related to the file format
  - The file format for uploading sample metadata to BioSamples is ISA-Tab
  (https://isa-specs.readthedocs.io/en/latest/isatab.html). Although ISA-Tab is specifically
  for Investigation, Study and Assay data, we have tried to use the sample table format
  specified in the ISA-Tab specification
  - The ISA-Tab file format is a tab delimited format (TSV)
  
  == Data format
  
  