Merge sorin-ionescu/prezto/pull/1096

.gitmodules

@@ -7,6 +7,9 @@
 [submodule "modules/completion/external"]
 	path = modules/completion/external
 	url = https://github.com/zsh-users/zsh-completions.git
+[submodule "modules/autosuggestions/external"]
+	path = modules/autosuggestions/external
+	url = https://github.com/zsh-users/zsh-autosuggestions.git
 [submodule "modules/prompt/external/powerline"]
 	path = modules/prompt/external/powerline
 	url = https://github.com/davidjrice/prezto_powerline.git
@@ -16,9 +19,6 @@
 [submodule "modules/prompt/functions/pure"]
 	path = modules/prompt/external/pure
 	url = https://github.com/sindresorhus/pure.git
-[submodule "modules/autosuggestions/external"]
-	path = modules/autosuggestions/external
-	url = https://github.com/tarruda/zsh-autosuggestions
 [submodule "modules/autoenv/external"]
 	path = modules/autoenv/external
 	url = https://github.com/horosgrisa/autoenv