Resolve "Correct Device info for Xiaomi violet"

Closes #145

See merge request !121

Update supported languages

See merge request !120

Resolve "Set the correct TWRP version to use for t0lte"

Closes #140

See merge request !119

Resolve "Update patch details for the i9305"

Closes #142

See merge request !117

Resolve "Remove broken links from HOWTOs"

Closes #143

See merge request !118

Resolve "Document the way to get the new calendars on the devices"

Closes #141

See merge request !116

Explain the git tag usage

See merge request !115

Resolve "Additional guide reference for Essential mata"

Closes #134

See merge request !113

Resolve "Add more install guide links"

Closes #128

See merge request !109

Resolve "Use stable android manifest instead of dev one"

Closes #131

See merge request !111

Fix documentation link

Add link to unofficial builds

Resolve "Fix phone-bricking error in OnePlus devices"

Closes #130

See merge request !110

Resolve "Correction of spelling error in Smartphone page"

Closes #126

See merge request !107

Resolve "Update easy-installer document"

Closes #125

See merge request !106

Resolve "Update tested TWRP version for star2lte"

Closes #124

See merge request !105

Resolve "Add step for installation improvement"

Closes #115

See merge request !104