Update the CI/CD config

Author: pavel-kirienko

.github/workflows/build.yml

@@ -1,4 +1,4 @@
-# A workflow to create the UAVCAN Specification PDF
+# A workflow to create the Cyphal Specification PDF
 
 name: CI
 on: push
@@ -15,7 +15,7 @@ jobs:
       with:
         submodules: recursive
 
-    # Compile the UAVCAN specification with texer DockerHub container
+    # Compile the Cyphal specification with texer DockerHub container
     - name: Run texer container
       uses: docker://uavcan/texer:ubuntu-18.04
       with:
@@ -26,5 +26,5 @@ jobs:
     - name: Upload pdf as an artifact
       uses: actions/upload-artifact@v2
       with:
-        name: UAVCAN Specification
-        path: specification/UAVCAN_Specification.pdf
+        name: Cyphal Specification
+        path: specification/Cyphal_Specification.pdf