Rename scripts to build

`scripts' is not very descriptive.

Signed-off-by: Sean Young <sean@mess.org>

.dockerignore

@@ -1,6 +1,6 @@
 Cargo.lock
 examples
-scripts
+build
 target
 .gitnore
 *.wasm

.github/workflows/ci-image.yml

@@ -6,7 +6,7 @@ jobs:
     steps:
     - name: Checkout sources
       uses: actions/checkout@v1
-    - run: docker build -f scripts/ci.dockerfile -t hyperledgerlabs/solang:ci .
+    - run: docker build -f build/ci.dockerfile -t hyperledgerlabs/solang:ci .
     - name: Login to DockerHub
       uses: docker/login-action@v1
       with:

docs/installing.rst

@@ -73,7 +73,7 @@ ________________________
 A pre-built version of llvm, specifically configured for Solang, is available at
 `<https://solang.io/download/llvm11.0-linux.tar.xz>`_ for x64 and
 `<https://solang.io/download/llvm11.0-linux-arm64.tar.xz>`_ for arm64. This version is built using the
-`dockerfile for building llvm on linux <https://github.com/hyperledger-labs/solang/blob/main/scripts/build-llvm-linux.dockerfile>`_.
+`dockerfile for building llvm on linux <https://github.com/hyperledger-labs/solang/blob/main/build/build-llvm-linux.dockerfile>`_.
 After downloading, untar the file in a terminal and add it to your path.
 
 .. code-block:: bash
@@ -86,7 +86,7 @@ __________________________
 
 A pre-built version of llvm, specifically configured for Solang, is available at
 `<https://solang.io/download/llvm11.0-win.zip>`_. This version is built using the
-`dockerfile for building llvm on Windows <https://github.com/hyperledger-labs/solang/blob/main/scripts/build-llvm-windows.dockerfile>`_.
+`dockerfile for building llvm on Windows <https://github.com/hyperledger-labs/solang/blob/main/build/build-llvm-windows.dockerfile>`_.
 
 If you want to use the dockerfile yourself rather than download the binaries above, then this
 requires `Docker Desktop <https://www.docker.com/products/docker-desktop>`_ installed, and then switched to