MAINT: Enclosed yaml strings into quotes when they contain colons.

See discussion of problems for example here: https://pyyaml.org/wiki/YAMLColonInFlowContext

src/caosdb/schema-pycaosdb-ini.yml

@@ -17,7 +17,7 @@ schema-pycaosdb-ini:
           description: URL of the CaosDB server
           type: string
           pattern: https://[-a-zA-Z0-9\.]+(:[0-9]+)?(/)?
-          examples: [https://demo.indiscale.com/, https://localhost:10443/]
+          examples: ["https://demo.indiscale.com/", "https://localhost:10443/"]
         username:
           type: string
           description: User name used for authentication with the server
@@ -52,7 +52,7 @@ schema-pycaosdb-ini:
           enum: [0, 1, 2]
           description: The debug key allows control the verbosity. Set it to 1 or 2 in case you  want to see debugging output or if you want to learn more about the internals of the protocol.  0 disables debugging output.
         socket_proxy:
-          examples: [localhost:12345]
+          examples: ["localhost:12345"]
           type: string
           description: You can define a socket proxy to be used. This is for the case that the server sits behind a firewall which is being tunnelled with a socket proxy (SOCKS4 or SOCKS5) (e.g. via ssh's -D option or a dedicated proxy server).
         implementation: