Document how to install swig and c++11 compiler on Ubuntu

[rcalsaverini]

Related issue: #277

[codecov-io]

Codecov Report

Merging #279 into development will decrease coverage by 0.04%.
The diff coverage is n/a.

@@              Coverage Diff               @@
##           development    #279      +/-   ##
==============================================
- Coverage        73.54%   73.5%   -0.05%     
==============================================
  Files              126     126              
  Lines             9545    9545              
==============================================
- Hits              7020    7016       -4     
- Misses            2525    2529       +4

Impacted Files	Coverage Δ
...eline/components/feature_preprocessing/fast_ica.py	90.24% <0%> (-7.32%)	⬇️
..._preprocessing/select_percentile_classification.py	85.71% <0%> (-3.58%)	⬇️
...peline/components/classification/multinomial_nb.py	92.1% <0%> (+1.31%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 8cfa03e...0a1ee30. Read the comment docs.