Update names of steps

Author: m-aciek

.github/workflows/reusable-docs.yml

@@ -75,14 +75,14 @@ jobs:
           --fail-if-regression \
           --fail-if-improved \
           --fail-if-new-news-nit
-    - name: 'Build EPUB documentation and load EPUB checks to file'
+    - name: 'Build EPUB documentation'
       continue-on-error: true
       run: |
         set -Eeuo pipefail
         make -C Doc/ PYTHON=../python SPHINXOPTS="--quiet" epub
         pip install epubcheck
         epubcheck Doc/build/epub/Python.epub &> Doc/epubcheck.txt
-    - name: 'Check for FATAL errors in EPUB'
+    - name: 'Check for fatal errors in EPUB'
       if: github.event_name == 'pull_request'
       run: |
         python Doc/tools/check-epub.py