Update developers documentation (#1764)

Author: marki1an

Diff for: README.md

@@ -96,11 +96,11 @@ and verify response status is `200 OK`.
 - [Adding new bidder](https://docs.prebid.org/prebid-server/developers/add-new-bidder-java.html)
 - [Adding new analytics module](https://docs.prebid.org/prebid-server/developers/pbs-build-an-analytics-adapter.html#adding-an-analytics-adapter-in-pbs-java)
 - [Adding viewability support](docs/developers/add-viewability-vendors.md)
-- [Auction result post-processing](docs/developers/auction-result-post-processing.md)
+- [Auction result post-processing](docs/auction-result-post-processing.md)
 - [Cookie Syncs](https://docs.prebid.org/prebid-server/developers/pbs-cookie-sync.html)
 - [Stored Requests](docs/developers/stored-requests.md)
 - [Unit Tests](docs/developers/unit-tests.md)
-- [GDPR](docs/developers/gdpr.md)
+- [GDPR](docs/gdpr.md)
 
 ## Maintenance
 - [Build for local](docs/build.md)
@@ -112,7 +112,7 @@ and verify response status is `200 OK`.
 - [Metrics](docs/metrics.md)
 
 ## Contributing
-- [Contributing](docs/contributing.md)
-- [Code Style](docs/code-style.md)
-- [Code Review](docs/code-reviews.md)
-- [Versioning](docs/versioning.md)
+- [Contributing](docs/developers/contributing.md)
+- [Code Style](docs/developers/code-style.md)
+- [Code Review](docs/developers/code-reviews.md)
+- [Versioning](docs/developers/versioning.md)

Diff for: docs/developers/auction-result-post-processing.md renamed to docs/auction-result-post-processing.md

@@ -5,7 +5,7 @@ individuals.
 
 ## Automated code style check
 
-The [pom.xml](../pom.xml) is configured to enforce a coding style defined in [checkstyle.xml](../checkstyle.xml) when
+The [pom.xml](../../pom.xml) is configured to enforce a coding style defined in [checkstyle.xml](../../checkstyle.xml) when
 maven `validate` phase executed.
 
 ## Formatting

Diff for: docs/developers/add-viewability-vendors.md

@@ -24,7 +24,7 @@ Documentation for the project is stored in the [docs]() directory. If your featu
 those updates must be submitted in the same Pull Request as the code changes.
 
 - [docs/endpoints](endpoints) describes the Prebid Server API. For example, the endpoint `host:port/openrtb2/auction` is described by [docs/endpoints/openrtb2/auction.md](endpoints/openrtb2/auction.md)
-- [docs/developers](developers) contains docs intended for Developers. These assume that the reader is technical, and describe the mechanics of features.
+- [docs/developers]() contains docs intended for Developers. These assume that the reader is technical, and describe the mechanics of features.
 
 ## Open a Pull Request