Documents refactored after wave of releases

Assertion-Manager/release-note.md

CH-IUA-Simulator/release-note.md

CH-IUA-Validator/release-note.md

Demographic-Data-Server/release-note.md

EVS-Client/installation-v5.md

EVS-Client/installation.md

EVS-Client/release-note.md

EVS-Client/user-v5.md

EVS-Client/user.md

EVS-Client/wsvalidation.md

Gazelle-HL7-Validator/installation.md

Gazelle-HL7-Validator/release-note.md

Gazelle-HL7-Validator/user.md

Gazelle-STS/installation.md

Gazelle-STS/user.md

Gazelle-Security-Suite/release-note.md

HPD-Simulator/release-note.md

Patient-Manager/release-note.md

Proxy/installation.md

Proxy/release-note.md