Refactor Mongoose documentation

PUBLISHED_FROM=e9a4e5c7b4a1d03b93a2a79e29de19e60e919929

docs/c-api/uri.h/intro.md

@@ -0,0 +1,10 @@
+---
+title: "URI"
+symbol_kind: "intro"
+decl_name: "uri.h"
+items:
+  - { name: mg_parse_uri.md }
+---
+
+
+

docs/c-api/uri.h/mg_parse_uri.md

@@ -0,0 +1,33 @@
+---
+title: "mg_parse_uri()"
+decl_name: "mg_parse_uri"
+symbol_kind: "func"
+signature: |
+  int mg_parse_uri(struct mg_str uri, struct mg_str *scheme,
+                   struct mg_str *user_info, struct mg_str *host,
+                   unsigned int *port, struct mg_str *path, struct mg_str *query,
+                   struct mg_str *fragment);
+---
+
+Parses an URI and fills string chunks with locations of the respective
+uri components within the input uri string. NULL pointers will be
+ignored.
+
+General syntax:
+
+    [scheme://[user_info@]]host[:port][/path][?query][#fragment]
+
+Example:
+
+    foo.com:80
+    tcp://foo.com:1234
+    http://foo.com:80/bar?baz=1
+    https://user:pw@foo.com:443/blah
+
+`path` will include the leading slash. `query` won't include the leading `?`.
+`host` can contain embedded colons if surrounded by square brackets in order
+to support IPv6 literal addresses.
+
+
+Returns 0 on success, -1 on error. 
+