Support additional dotfiles

.gitconfig

@@ -1,6 +1,6 @@
 [user]
 	name = Marcus Noble
-	email = git@marcusnoble.co.uk
+	email = github@marcusnoble.co.uk
 
 [core]
 	editor = /usr/bin/vim

.zshrc

@@ -2,4 +2,8 @@ for filename in ~/.dotfiles/*; do
   source $filename
 done
 
+for filename in ~/.additional_dotfiles/*; do
+  source $filename
+done
+
 eval "$(starship init zsh)"

Makefile

@@ -31,7 +31,8 @@ dotfiles: ## Installs the dotfiles.
 		f=$$(basename $$file); \
 		ln -sfn $$file $(HOME)/$$f; \
 	done; \
-	mkdir -p $(HOME)/.config
+	mkdir -p $(HOME)/.additional_dotfiles; touch $(HOME)/.additional_dotfiles/credentials; \
+	mkdir -p $(HOME)/.config; \
 	for file in $(shell find $(CURDIR)/.config -type f); do \
 		f=$$(basename $$file); \
 		ln -sfn $$file $(HOME)/.config/$$f; \