Docs are generated for Mongoose

Comments in headers are changed a bit: removed adoc-specific stuff,
markdown is used instead

PUBLISHED_FROM=9242cce85cc52a47a197d377e7e23804721a6bb5

docs/c-api/net.h/struct_mg_bind_opts.md

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+---
+title: "struct mg_bind_opts"
+decl_name: "struct mg_bind_opts"
+symbol_kind: "struct"
+signature: |
+  struct mg_bind_opts {
+    void *user_data;           /* Initial value for connection's user_data */
+    unsigned int flags;        /* Extra connection flags */
+    const char **error_string; /* Placeholder for the error string */
+  #ifdef MG_ENABLE_SSL
+    /* SSL settings. */
+    const char *ssl_cert;    /* Server certificate to present to clients */
+    const char *ssl_ca_cert; /* Verify client certificates with this CA bundle */
+  #endif
+  };
+---
+
+Optional parameters to `mg_bind_opt()`.
+
+`flags` is an initial `struct mg_connection::flags` bitmask to set,
+see `MG_F_*` flags definitions. 
+