Fix typos

roles/matrix-server/tasks/setup_nginx_proxy.yml

@@ -10,7 +10,7 @@
 # It doesn't hurt to put them in place, even if they turn out
 # to be unnecessary.
 #
-- name: Ensure Matrix nginx-proxy paths exists
+- name: Ensure Matrix nginx-proxy paths exist
   file:
     path: "{{ item }}"
     state: directory

roles/matrix-server/tasks/setup_riot_web.yml

@@ -4,7 +4,7 @@
 # Tasks related to setting up riot-web
 #
 
-- name: Ensure Matrix riot-web paths exists
+- name: Ensure Matrix riot-web path exists
   file:
     path: "{{ matrix_nginx_riot_web_data_path }}"
     state: directory

roles/matrix-server/tasks/setup_synapse.yml

@@ -5,7 +5,7 @@
     msg: "You need to set a secret in the matrix_synapse_macaroon_secret_key variable"
   when: "matrix_synapse_macaroon_secret_key == ''"
 
-- name: Ensure Matrix Synapse paths exists
+- name: Ensure Matrix Synapse paths exist
   file:
     path: "{{ item }}"
     state: directory