Fix all broken links

Various reorganizations and renaming on the website broke some links.

Signed-off-by: Daniel Farrell <[email protected]>

CODE-OF-CONDUCT.md

@@ -1,3 +1,3 @@
 # Code of Conduct
 
-Please see the [Code of Conduct docs on Submariner's website](https://submariner.io/contributing/code-of-conduct/).
+Please see the [Code of Conduct docs on Submariner's website](https://submariner.io/community/code-of-conduct/).

CONTRIBUTING.md

@@ -1,3 +1,3 @@
 # Contributing
 
-Please see the [Contributing docs on Submariner's website](https://submariner.io/for_developers/).
+Please see the [Development docs on Submariner's website](https://submariner.io/development/).

README.md

@@ -6,12 +6,12 @@ multi-cluster environments. The solution is compatible with any CNI (Container N
 ## Architecture
 
 The Lighthouse architecture is explained in detail at
-[Service Discovery](https://submariner.io/getting_started/architecture/service-discovery/).
+[Service Discovery](https://submariner.io/getting-started/architecture/service-discovery/).
 
 ## Contribute
 
-We welcome any contributions. Please refer to the [Contribution Guide](https://submariner.io/for_developers/) for more details.
+We welcome any contributions. Please refer to the [Development Guide](https://submariner.io/development/) for more details.
 
 ## Build and Test
 
-To build and test your code follow the steps in [Building and Testing](https://submariner.io/for_developers/building_testing/).
+To build and test your code follow the steps in [Building and Testing](https://submariner.io/development/building-testing/).