ci: try to build for linux only and install readline before

.github/workflows/build.yml

@@ -13,18 +13,20 @@ jobs:
 		runs-on: ubuntu-latest
 		strategy:
 			matrix:
+				include:
 				# build and publish in parallel: linux/386, linux/amd64, windows/386, windows/amd64, darwin/amd64 
-        goos: 
-          - linux
-          - windows
-          - darwin
+					- goos: linux
+						os: ubuntu-latest
+#						- windows
+#						- darwin
 					goarch:
-          - "386"
 						- amd64
 					exclude:  
 						- goarch: "386"
 							goos: darwin 
 		steps:
+		- name: Install readline
+			run: sudo apt install libreadline-dev
 		- uses: actions/checkout@v2
 		- uses: wangyoucao577/go-release-action@v1.17
 			with:
@@ -33,3 +35,4 @@ jobs:
 				goarch: ${{ matrix.goarch }}
 				extra_files: LICENSE README.md
 				asset_name: hilbish-${{ matrix.goos }}-${{ matrix.goarch }}
+