Update README.md

Author: huggla

README.md

@@ -14,7 +14,7 @@ QWC2_GIT_REPOSITORY=git_repository_to_clone
 Volumes
 -------
 /run/secrets:
-  1. /run/secrets/id_rsa contains private ssh key to use when cloning from Github.
+  1. /run/secrets/id_rsa contains private ssh key to use when cloning from Github (optional).
   2. /run/secrets/user-pw contains encrypted password for USER. If user-pw is set then it is used for ssh authentication.
   3. /run/secrets/authorized_keys is used for ssh private key authentication. Is copied to ~/.ssh/authorized_keys.
   4. /run/secrets/ssh-themeupdate-key contains a public key used for ssh connection with theme update permission only.
@@ -25,13 +25,13 @@ Volumes
 
 Executables
 -----------
-/usr/local/bin/entrypoint.sh is run at container start.
+/usr/local/bin/entrypoint.sh: Is run at container start.
 
-/usr/local/bin/clone-qwc2 clones QWC2 from Github.
+/usr/local/bin/clone-qwc2: Clones QWC2 from Github.
 
-/usr/local/bin/build-qwc2 builds QWC2 from cloned source. The result is saved to /qwc2.
+/usr/local/bin/build-qwc2: Builds QWC2 from cloned source. The result is saved to /qwc2.
 
-/usr/local/bin/upd-qwc2-themes updates /qwc2 to latest configuration read from /qwc2conf.
+/usr/local/bin/upd-qwc2-themes: Updates /qwc2 to latest configuration read from /qwc2conf.
 
 Connect with ssh
 ----------------