Add job in CI for wasm build

Author: curquiza

.github/workflows/tests.yml

@@ -46,3 +46,11 @@ jobs:
     - uses: actions/checkout@v2
     - name: Check the README.md file is up-to-date
       run: sh scripts/check-readme.sh
+
+  wasm_build:
+    name: wasm-build
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Build
+      run: cargo build --example web_app

bors.toml

@@ -1,3 +1,8 @@
-status = ['integration-tests', 'clippy-check', 'readme-check']
+status = [
+    'integration-tests',
+    'clippy-check',
+    'readme-check',
+    'wasm-build'
+]
 # 1 hour timeout
 timeout-sec = 3600