MRM-4087 readme started

CODING.md

+## Coding standards
+
+First, `go fmt` must be applied for all Go-sources.
+
+Also we use [golangci-lint](https://golangci-lint.run/) analysis tool. See [.golangci.yml](./.golangci.yml) for enabled linters. The linter is disabled for some fragments of old code using a comment in the format:
+
+```go
+// nolint:linter-name[,linter-name] // explanation why linter is disabled
+```
+
+Try do not exclude or disable any linters to avoid `golangci-lint` messages. FIX the code instead. __New code MUST meet__ the linter requirements!
+
+## Proto format
+
+As you know there is a tool named `clang-format` which able to format proto-sources. We use it too to support generic formatting. It is a part of [LLVM project](https://llvm.org/). After installing the tool make appropriate settings to your IDE to use `clang-format` on saving the proto-files.
+
+## Generating Go sources
+
+You have install several executables before generating required Go sources. To do this, run `go generate tools.go` (or `make bin-tools`) under the project root. Note, if you installed these tools for different project, you may need to reinstall it again here.
+
+## Available automation
+
+Run `make` under the project root without arguments to see provided actions that are automated already.

README.md

-# Mashroom Property service
+# Mashroom Property
 
 The Property service is intended to manage real estate objects data.
 
-## Coding standards
+## GRPC API
 
-First, `go fmt` must be applied for all Go-sources.
+Method | Scope | Description
+-|-|-
 
-Also we use [golangci-lint](https://golangci-lint.run/) analysis tool. See [.golangci.yml](./.golangci.yml) for enabled linters. The linter is disabled for some fragments of old code using a comment in the format:
+(TODO: a more detailed description of the methods is needed)
 
-```go
-// nolint:linter-name[,linter-name] // explanation why linter is disabled
-```
+## GRPC coupling
 
-Try do not exclude or disable any linters to avoid `golangci-lint` messages. FIX the code instead. __New code MUST meet__ the linter requirements!
+Service | Use
+-|-
+Address | 
+Auth | 
+Account | 
+Contract | 
+Document | 
+Extras | 
+Geo | 
+Invoice | 
+Invitation | 
+Notification | 
+Offer | 
+Rightmove | 
+Schedule | 
+Zoopla | 
 
-## Proto format
+## Databases
 
-As you know there is a tool named `clang-format` which able to format proto-sources. We use it too to support generic formatting. It is a part of [LLVM project](https://llvm.org/). After installing the tool make appropriate settings to your IDE to use `clang-format` on saving the proto-files.
+DBMS | Extensions
+-|-
+MongoDB | none
   
-## Generating Go sources
+Access abstraction:
 
-You have install several executables before generating required Go sources. To do this, run `go generate tools.go` (or `make bin-tools`) under the project root. Note, if you installed these tools for different project, you may need to reinstall it again here.
+Migrations: 
 
-## Available automation
+## Observability
 
-Run `make` under the project root without arguments to see provided actions that are automated already.
+N/A
+
+## Notes
+
+The service is integrated with Zeebe, this may be removed in the future.