feat(notes): Add screening tool with keywords

Added a long list of all tags currently in use and
begin explaining what they are used for.

03-supplementary_data/screening-tool.md

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+# Screening tool
+
+Tracks the categories and possible values of tags (or 'keywords') for the screening process step of scoping.
+
+## TODO
+
+A work-in-progress tag which simply states the step of the scoping review 
+process the respective source is currently at.
+
+TODO::QUESTION
+TODO::SPANISH
+TODO::abstract
+TODO::full-text
+TODO::review
+TODO::title
+
+## Cite
+
+Even if a study is not directly relevant for the final extraction pool,
+it might contain valuable information. These tags give the reason they may
+prove interesting yet when considering the inequalities analyzed by them.
+
+cite::channels
+cite::framework
+cite::further_reading
+
+## Country
+
+The main country of interest for the study. Multiple possible for comparative/multiple case studies. 
+Global studies, or ones using dozens of countries will not be tagged.
+
+country::Argentina
+country::Armenia
+country::Australia
+country::Austria
+country::Bangladesh
+country::Belgium
+country::Bengal
+country::Bolivia
+country::Bosnia_Herzegovina
+country::Botswana
+country::Brazil
+country::Britain
+country::Burundi
+country::Cambodia
+country::Cameroon
+country::Canada
+country::Chile
+country::China
+country::Colombia
+country::Croatia
+country::Cyprus
+country::Czech_Republic
+country::Denmark
+country::Ecuador
+country::Eswatini
+country::Ethiopia
+country::Finland
+country::France
+country::Germany
+country::Ghana
+country::Greece
+country::Guatemala
+country::Honduras
+country::HongKong
+country::Hungary
+country::India
+country::Indonesia
+country::Iran
+country::Ireland
+country::Israel
+country::Italy
+country::Japan
+country::Jordan
+country::Kazakhstan
+country::Kenya
+country::Korea
+country::Liberia
+country::Lithuania
+country::Madagascar
+country::Malawi
+country::Malawy
+country::Malaysia
+country::Malta
+country::Mexico
+country::Mongolia
+country::Morocco
+country::Nepal
+country::Netherlands
+country::New_Zealand
+country::Nicaragua
+country::Nigeria
+country::Norway
+country::Pakistan
+country::Paraguay
+country::Philippines
+country::Poland
+country::Portugal
+country::Romania
+country::Russia
+country::Rwanda
+country::Saudi_Arabia
+country::Senegal
+country::Slovakia
+country::South_Africa
+country::Spain
+country::Sri_Lanka
+country::Sweden
+country::Switzerland
+country::Taiwan
+country::Tanzania
+country::Thailand
+country::Timor-Leste
+country::Turkey
+country::US
+country::Ukraine
+country::Uruguay
+country::Vietnam
+country::West_Bank
+country::Zambia
+
+## Inequality
+
+The type of inequality illuminated by a study.
+Will often be multiple, a strong sign for a study's intersectional approach.
+
+inequality::age
+inequality::consumption
+inequality::disability
+inequality::education
+inequality::ethnicity
+inequality::gender
+inequality::generational
+inequality::health
+inequality::income
+inequality::income
+inequality::language
+inequality::lgbt
+inequality::migration
+inequality::poverty
+inequality::racial
+inequality::socio-demographic
+inequality::spatial
+
+## Issue
+
+If there is an issue with a study which may impede further 
+progress, or any progress at all - even if it may not be sorted
+out from relevance yet, or if it has.
+
+issue::age
+issue::language
+issue::no-access
+
+## Method
+
+If one method is clearly marked as primary, or surprisingly is not 
+the primary method within title and or abstract, it will be noted 
+here.
+
+method::qualitative
+method::quantitative
+
+## Out
+
+The reason, or step of the screening process for the study falling 
+out of relevance. Will be used later to generate accurate numbers 
+per screening step.
+
+out::abstract
+out::full-text
+out::language
+out::review
+out::title
+out::year
+
+## Region
+
+The general world region a study is working in.
+May align to the individual country (or countries) it is analyzing,
+but may also stand on its own.
+
+region::AP
+region::EU
+region::LAC
+region::MENA
+region::NA
+region::SSA
+
+## Review
+
+If a study is a review, it will be captured under one of these tags.
+
+review::?
+review::critical
+review::integrative
+review::meta
+review::narrative
+review::scoping
+review::systematic
+review::umbrella
+
+## Type
+
+The primary type of intervention, circumstance or shock the study is interested in.
+
+type::automation
+type::cash_transfer
+type::child_labor
+type::collective_action
+type::cooperative_entrepreneurship
+type::counseling
+type::csr
+type::electrification
+type::experimental
+type::infrastructure
+type::institutional
+type::marketization
+type::maternity_benefit
+type::microcredit
+type::minimum_wage
+type::pension
+type::regulation
+type::rtw
+type::structural
+type::subsidy
+type::taxation
+type::trade_liberalization
+type::training
+type::ubi
+type::universal_licensing
+type::volunteering
+type::welfare
+type::work_programme
+
+## Misc
+
+⚠️ Invalid DOI
+⛔ No DOI found
+favorite
+relevant
+integrated
+intersectional