Resolve "Add MultiQC"

Closes #5 (closed)

docs/references.md

+### References
+
+1. **python**:
+  * Anaconda (Anaconda Software Distribution, [https://anaconda.com](https://anaconda.com))
+
+2. **cellranger**
+  * Cellranger mkfastq [https://support.10xgenomics.com/single-cell-gene-expression/software/pipelines/latest/using/mkfastq](https://support.10xgenomics.com/single-cell-gene-expression/software/pipelines/latest/using/mkfastq)
+
+3. **MultiQc**:
+  * Ewels P., Magnusson M., Lundin S. and Käller M. 2016. MultiQC: Summarize analysis results for multiple tools and samples in a single report. Bioinformatics 32(19): 3047–3048. doi:[10.1093/bioinformatics/btw354](https://dx.doi.org/10.1093/bioinformatics/btw354)