message: Updated docs to reflect missing steps
  Cross compilations issues while make minikube image
  Added troubleshooting guide
diff: @@ -56,6 +56,16 @@ $ cargo build
  $ cargo test
  ```
  +Add standard library for the target platform:
  +
  +```
  +rustup target add x86_64-unknown-linux-musl
  +```
  +To build a full cross compiler toolchain targeting musl Linux amd64, perform:
  +
  +```
  +brew install filosottile/musl-cross/musl-cross
  +```
  You can run development version of fluvio CLI:
  ```
  $ target/debug/fluvio
  @@ -80,7 +90,14 @@ Please ensure local docker registry is running:
  ```
  ./dev-tools/minikube-docker.sh
  ```
  +```
  + docker run -d -p 5000:5000 --restart=always --name registry registry:2
  +```
  +Set the following environment variable:
  +```
  +export TARGET_CC=x86_64-linux-musl-gcc
  +```
  Then build docker images for current source code:
  ```
  make minikube_image
  @@ -160,6 +177,49 @@ Run end to end integration test with a multiple SPU. For example, with 2 SPU
  ```
  ./target/debug/flv-test --local
  ```
  +## Troubleshooting
  +This guide helps users to solve issues they might face during the setup process.
  +
  +###### Cross-compilation errors
  +
  +If you face cross-compilation errors while creating minikube image, for example
  +
  +```
  +cargo build --bin spu-server --target x86_64-unknown-linux-musl
  +error: linker `x86_64-linux-musl-gcc` not found
  + |
  + = note: No such file or directory (os error 2)
  +error: aborting due to previous error
  +error: could not compile `flv-spu`.
  +```
  +This is indicative that you need to add standard library for the target platform:
  +
  +```
  +rustup target add x86_64-unknown-linux-musl
  +```
  +
  +If it still doesn't work
  +
  +```
  +brew install filosottile/musl-cross/musl-cross
  +```
  +
  +Make sure you set the following environment variable
  +
  +```
  +export TARGET_CC=x86_64-linux-musl-gcc
  +```
  +
  +###### Connection issues
  +
  +If you face issues while connecting to the registry
  +```
  +Get http://localhost:5000/v2/: dial tcp [::1]:5000: connect: connection refused
  +```
  +It means your docker registry is not running
  +```
  +docker run -d -p 5000:5000 --restart=always --name registry registry:2
  +```
  