docs nits

docs/README.md

@@ -1072,11 +1072,10 @@ Send a simple JSON response:
 mg_http_reply(c, 200, "Content-Type: application/json\r\n", "{\"result\": %d}", 123);
 ```
 
-Send JSON response using [mjson](https://github.com/cesanta/mjson) library:
+Send JSON response:
 ```c
-char *json = NULL;
-mjson_printf(mjson_print_dynamic_buf, &json, "{%Q:%d}", "name", 123);
-mg_http_reply(c, 200, "Content-Type: application/json\r\n", "%s", json);
+char *json = mg_mprintf("{%Q:%d}", "name", 123);
+mg_http_reply(c, 200, "Content-Type: application/json\r\n", "%s\n", json);
 free(json);
 ```
 

docs/images/mg_http_reply.svg

@@ -28,7 +28,7 @@
 		<text transform="matrix(1 0 0 1 502.9807 204.1905)" class="st2 st3 st4">Content-Length; 13</text>
 		<text transform="matrix(1 0 0 1 502.9807 224.2905)" class="st2 st3 st4">X-Header-1: additional value 1</text>
 		<text transform="matrix(1 0 0 1 502.9807 244.3905)" class="st2 st3 st4">X-Header-2: additional value 2</text>
-		<text transform="matrix(1 0 0 1 503.2368 293.1559)" class="st2 st3 st4">Hello, World!</text>
+		<text transform="matrix(1 0 0 1 503.2368 293.1559)" class="st2 st3 st4">Hello, world!</text>
 	</g>
 </g>
 <text transform="matrix(1 0 0 1 681.8747 137.3383)" class="st5 st6">HTTP message</text>
@@ -36,7 +36,7 @@
 	<g>
 		<text transform="matrix(1 0 0 1 33.1042 85.1617)" class="st2 st3 st4">mg_http_reply(c, 200</text>
 		<text transform="matrix(1 0 0 1 171.9368 113.7079)" class="st2 st3 st4">"X-Header-1: additional value 1\r\n"</text>
-		<text transform="matrix(1 0 0 1 171.9368 133.8079)" class="st2 st3 st4">"X-Header-1: additional value 2\r\n",</text>
+		<text transform="matrix(1 0 0 1 171.9368 133.8079)" class="st2 st3 st4">"X-Header-2: additional value 2\r\n",</text>
 		<text transform="matrix(1 0 0 1 171.9368 153.9079)" class="st2 st3 st4">"Hello, %s!", "world");</text>
 	</g>
 </g>