Merge branch 'fix-header' into 'master'

...ions/bioinformatics_tools/alignment_tools/blast/_index.md

...ools/alignment_tools/blast/create_local_blast_database.md

...cs_tools/alignment_tools/blast/running_blast_alignment.md

...applications/bioinformatics_tools/alignment_tools/blat.md

...plications/bioinformatics_tools/alignment_tools/bowtie.md

...lications/bioinformatics_tools/alignment_tools/bowtie2.md

...ations/bioinformatics_tools/alignment_tools/bwa/_index.md

...rmatics_tools/alignment_tools/bwa/running_bwa_commands.md

...ons/bioinformatics_tools/alignment_tools/clustal_omega.md

...ns/bioinformatics_tools/alignment_tools/tophat_tophat2.md

...pplications/bioinformatics_tools/biodata_module/_index.md

...ormatics_tools/data_manipulation_tools/bamtools/_index.md

..._manipulation_tools/bamtools/running_bamtools_commands.md

...ormatics_tools/data_manipulation_tools/samtools/_index.md

..._manipulation_tools/samtools/running_samtools_commands.md

...ioinformatics_tools/data_manipulation_tools/sratoolkit.md

...ions/bioinformatics_tools/de_novo_assembly_tools/oases.md

...ations/bioinformatics_tools/de_novo_assembly_tools/ray.md

...ioinformatics_tools/de_novo_assembly_tools/soapdenovo2.md

...nformatics_tools/de_novo_assembly_tools/trinity/_index.md