update: makefile example for mkdocs using python virtual environment

docs/posts/2024/september/30.md

@@ -423,7 +423,7 @@ A python virtual environment was created and then Material for MkDocs python pac
 !!! NOTE "Run local server for Material for MkDocs"
 
     ```shell
-    source ~/.local/venv/bin/activate && mkdocs build
+    . ~/.local/venv/bin/activate; mkdocs build
     ```
 
 !!! HINT "Makefile task to run server"
@@ -434,21 +434,17 @@ A python virtual environment was created and then Material for MkDocs python pac
     # ------------------------------------ #
 
     # --- Documentation Generation  ------ #
-    python-venv:  ## Enable Python Virtual Environment for MkDocs
-    	$(info --------- Mkdocs Local Server ---------)
-    	source ~/.local/venv/bin/activate
-
     docs: ## Build and run mkdocs in local server (python venv)
     	$(info --------- Mkdocs Local Server ---------)
-    	source ~/.local/venv/bin/activate && $(MKDOCS_SERVER)
+    	. ~/.local/venv/bin/activate; $(MKDOCS_SERVER)
 
     docs-changed:  ## Build only changed files and run mkdocs in local server (python venv)
     	$(info --------- Mkdocs Local Server ---------)
-    	source ~/.local/venv/bin/activate && $(MKDOCS_SERVER) --dirtyreload
+    	. ~/.local/venv/bin/activate; $(MKDOCS_SERVER) --dirtyreload
 
     docs-build:  ## Build mkdocs (python venv)
-    	$(info --------- Mkdocs Local Server ---------)
-    	source ~/.local/venv/bin/activate && mkdocs build
+        $(info --------- Mkdocs Local Server ---------)
+    	. ~/.local/venv/bin/activate; mkdocs build
     # ------------------------------------ #
     ```