Fix other missing EOF newlines

docs/404.rst

@@ -3,4 +3,4 @@
 404 Page not found.
 ===================
 
-Please use left menu or search to find interested page.
+Please use left menu or search to find interested page.

docs/Makefile

@@ -16,4 +16,4 @@ help:
 # Catch-all target: route all unknown targets to Sphinx using the new
 # "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
 %: Makefile
-	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

docs/_static/css/theme_overrides.css

@@ -14,4 +14,4 @@
     .wy-nav-content {
         max-width: 1500px !important;
     }
- }
+ }