Clean up variable description

[luizaandrade]

• [x] Labor market regulations: https://tcdata360.worldbank.org/indicators/mpf.lab.regu?country=BRA&indicator=3289&viz=line_chart&years=2008,2017
• [ ] SOE report disclosure: https://govdata360.worldbank.org/indicators/h88c9f9d0?country=BRA&indicator=42091&viz=bar_chart
• [x] Competition regulation
• [x] Freedom, foreign bank accounts
• [x] Labor market regulations
• [x] Polity IV score
• [x] Procurement score
• [x] Supervision efficiency-banking
• [x] Supervision efficiency-financial
• [x] Credit market regulations
• [ ] Insolvency framework, strength
• [x] Collective bargaining coverage
• [x] Minimum to mean wage ratio
• [x] Union density
• [x] Integrity of the legal system
• [x] Civil liberties
• [x] Political rights
• [x] Centre of Government, influence
• [x] Impartial Public Administration
• [x] Criteria for appointment decisions in the state administration
• [ ] Direct control over business enterprises
• [ ] Government involvement in network sectors
• [x] Scope of state-owned enterprises

[gabrielvazdemelo]

Update @luizaandrade:

• [ ] Challenging regulations; Settling disputes -> API variables with no definition
• [ ] Direct control over business enterprises; Government involvement in network sectors; GovTech Maturity Index (GTMI) -> additional variables, need definitions
• [ ] SOE (...) variables -> need unique definition to the average composition
• [ ] Insolvency framework, strength -> original data, but added after definitions, needs some