Mongoose TCP tunnel

PUBLISHED_FROM=f03b963aaec02574e47c28ee8033551440b94f2d

docs/c-api/util.h/mg_mbuf_append_base64.md

@@ -0,0 +1,10 @@
+---
+title: "mg_mbuf_append_base64()"
+decl_name: "mg_mbuf_append_base64"
+symbol_kind: "func"
+signature: |
+  void mg_mbuf_append_base64(struct mbuf *mbuf, const void *data, size_t len);
+---
+
+Encode `len` bytes starting at `data` as base64 and append them to an mbuf. 
+