Temporarily disable appdash from docker-compose

Until I read the doc and find how to limit the retention,
otherwise it just eats all my ram and cpu and things start to fall
apart.

PUBLISHED_FROM=eb33fb44736f07b992270689217aca4af70513ff

docs/c-api/dns.h/struct_mg_dns_message.md

@@ -1,18 +0,0 @@
----
-title: "struct mg_dns_message"
-decl_name: "struct mg_dns_message"
-symbol_kind: "struct"
-signature: |
-  struct mg_dns_message {
-    struct mg_str pkt; /* packet body */
-    uint16_t flags;
-    uint16_t transaction_id;
-    int num_questions;
-    int num_answers;
-    struct mg_dns_resource_record questions[MG_MAX_DNS_QUESTIONS];
-    struct mg_dns_resource_record answers[MG_MAX_DNS_ANSWERS];
-  };
----
-
-DNS message (request and response). 
-