Replace dots with underscores when creating env var examples

Signed-off-by: RD WebDesign <[email protected]>

Author: rdwebdesign

tools/pihole_toml_to_markdown.py

@@ -156,7 +156,7 @@ def parse_toml_with_comments(filepath):
 
             # Compose full key for CLI/env var examples
             full_key = ".".join(section_stack + [key])
-            env_var = "FTLCONF_" + "_".join(section_stack + [key])
+            env_var = "FTLCONF_" + full_key.replace(".", "_")
 
             # TOML example tab
             documentation.append(f'=== "TOML"')