Extract HACKING.md, rename script

HACKING.md

@@ -0,0 +1,59 @@
+# Hacking guide
+
+## Development dependencies
+
+Additional dependencies needed for development:
+
+* [golangci-lint](https://golangci-lint.run/usage/install/#local-installation)
+
+* [stringer](https://github.com/golang/tools)
+
+    `go install golang.org/x/tools/cmd/stringer@latest`
+
+## Makefile targets
+
+Update and build everything:
+
+```
+make
+```
+
+Run specific step:
+
+```
+make gen|build|lint|test|testall
+```
+
+Update go modules:
+
+```
+make tidy
+```
+
+Format code:
+
+```
+make fmt
+```
+
+## Making release
+
+To release a new version:
+
+ * Create git tag
+
+    ```
+    ./make_tag.py --push <remote> <version>
+    ```
+
+    e.g.
+
+    ```
+    ./make_tag.py --push origin 1.2.3
+    ```
+
+    You can omit `--push origin` to only create a tag locally without pushing it to github.
+
+* Wait until "Release" CI job completes and creates GitHub release draft.
+
+* Edit GitHub release created by CI and publish it.

README.md

@@ -168,19 +168,6 @@ for {
 }
 ```
 
-## Versioning
-
-Go bindings and the C library both use [semantic versioning](https://semver.org/).
-
-Bindings are **compatible** with the C library when:
-
-- **major** version of bindings **is same** as major version of C library
-- **minor** version of bindings **is same or higher** as minor version of C library
-
-Patch versions of bindings and C library are independent.
-
-For example, version 1.2.3 of the bindings would be compatible with 1.2.x and 1.3.x, but not with 1.1.x (minor version is lower) or 2.x.x (major version is different).
-
 ## Installation
 
 You will need to have Roc Toolkit library and headers installed system-wide. Refer to official build [instructions](https://roc-streaming.org/toolkit/docs/building.html) on how to install it.
@@ -191,61 +178,24 @@ After installing libroc, you can install bindings using regular `go get`:
 go get github.com/roc-streaming/roc-go/roc
 ```
 
-## Development
-
-Install development dependencies:
-
-* [golangci-lint](https://golangci-lint.run/usage/install/#local-installation)
-
-* [stringer](https://github.com/golang/tools)
-
-    `go install golang.org/x/tools/cmd/stringer@latest`
-
-Run all checks:
-
-```
-make
-```
-
-Run only specific checks:
-
-```
-make gen|build|lint|test|testall
-```
-
-Update modules:
-
-```
-make tidy
-```
-
-Format code:
-
-```
-make fmt
-```
-
-## Release
+## Versioning
 
-To release a new version:
+Go bindings and the C library both use [semantic versioning](https://semver.org/).
 
- * Create git tag
+Bindings are **compatible** with the C library when:
 
-    ```
-    ./tag.py --push <remote> <version>
-    ```
+- **major** version of bindings **is same** as major version of C library
+- **minor** version of bindings **is same or higher** as minor version of C library
 
-    e.g.
+Patch versions of bindings and C library are independent.
 
-    ```
-    ./tag.py --push origin 1.2.3
-    ```
+For example, version 1.2.3 of the bindings would be compatible with 1.2.x and 1.3.x, but not with 1.1.x (minor version is lower) or 2.x.x (major version is different).
 
-    Or use **tag.py** without **--push** to only create a tag locally, and then push it manually.
+## Hacking
 
-* Wait until "Release" CI job completes and creates GitHub release draft.
+Contributions are always welcome! You can find issues needing help using [help wanted](https://github.com/roc-streaming/roc-vad/labels/help%20wanted) and [good first issue](https://github.com/roc-streaming/roc-vad/labels/good%20first%20issue) labels.
 
-* Edit GitHub release created by CI and publish it.
+See [HACKING.md](HACKING.md) for details about the project internals.
 
 ## Authors