Fix mongoose docs generation

PUBLISHED_FROM=331821dcd1f7dc8a94581cd8a9b51aa00a89fddc

docs/c-api/mg_http_client.h/mg_connect_http_opt.md

@@ -0,0 +1,15 @@
+---
+title: "mg_connect_http_opt()"
+decl_name: "mg_connect_http_opt"
+symbol_kind: "func"
+signature: |
+  struct mg_connection *mg_connect_http_opt(
+      struct mg_mgr *mgr, MG_CB(mg_event_handler_t ev_handler, void *user_data);
+---
+
+Helper function that creates an outbound HTTP connection.
+
+Mostly identical to mg_connect_http, but allows you to provide extra
+*parameters
+(for example, SSL parameters) 
+