refactor(workflows): align GitHub workflow conventions

Cosmetic pass at aligning the conventions used in ZMK's workflows with GitHub's examples.  Based on examples found at:
https://github.com/actions/starter-workflows

PR #433

.github/workflows/doc-checks.yml

@@ -1,4 +1,4 @@
-name: doc-checks
+name: Docs Checks
 
 on:
   push:
@@ -13,8 +13,6 @@ on:
 jobs:
   lint:
     runs-on: ubuntu-latest
-    name: ESLint
-
     steps:
       - uses: actions/checkout@v2
       - uses: bahmutov/npm-install@v1
@@ -26,12 +24,11 @@ jobs:
   prettier:
     runs-on: ubuntu-latest
     name: Prettier
-
     steps:
       - uses: actions/checkout@v2
       - uses: bahmutov/npm-install@v1
         with:
           working-directory: docs
-      - name: Prettier Check
+      - name: Prettier check
         run: npm run prettier:check
         working-directory: docs