[docs] README.md: tidying up contents

[ryanw-mobile]

Refreshing the project's situation

[codacy-production[bot]]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
:x: -1.96% (target: -1.00%)	:white_check_mark: ∅

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (dd7f6dbc8a46da57b34e19f99af4a6872af9fb30) | 2652 | 2253 | 84.95% | | | Head commit (84a3bb3e39a411894e471947ce609555b3d5ce4a) | 2899 (+247) | 2406 (+153) | 82.99% (**-1.96%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#357) | 0 | 0 | **∅ (not applicable)** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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