update readme

README.md

@@ -9,7 +9,7 @@ _rtsp-simple-server_ is a simple, ready-to-use and zero-dependency RTSP server a
 
 Features:
 * Read and publish live streams with UDP and TCP
-* Each stream can have multiple video and audio tracks, encoded in any format (including H264, H265, VP8, VP9, MP3, AAC, Opus, PCM)
+* Each stream can have multiple video and audio tracks, encoded with any codec (including H264, H265, VP8, VP9, MP3, AAC, Opus, PCM)
 * Publish multiple streams at once, each in a separate path, that can be read by multiple users
 * Pull and serve streams from other RTSP or RTMP servers, always or on-demand (RTSP proxy)
 * Provide separate authentication for reading and publishing
@@ -66,14 +66,17 @@ docker run --rm -it -e RTSP_PROTOCOLS=tcp -p 8554:8554 aler9/rtsp-simple-server
 
 ### Configuration
 
-To see or change the configuration, edit the `rtsp-simple-server.yml` file, provided with the executable, and also [available here](rtsp-simple-server.yml).
+To see or change the configuration, edit the `rtsp-simple-server.yml` file, that is:
+* included the release bundle
+* available in the root folder of the Docker image (`/rtsp-simple-server.yml`)
+* also [available here](rtsp-simple-server.yml).
 
-The configuration can be overridden by environment variables, in the format `RTSP_PARAMNAME`, where `PARAMNAME` is the uppercase name of a parameter. For instance, the `rtspPort` parameter can be overridden in the following way:
+Every configuration parameter can be overridden by environment variables, in the format `RTSP_PARAMNAME`, where `PARAMNAME` is the uppercase name of a parameter. For instance, the `rtspPort` parameter can be overridden in the following way:
 ```
 RTSP_RTSPPORT=8555 ./rtsp-simple-server
 ```
 
-Parameters in dicts/maps can be overridden by using underscores, in the following way:
+Parameters in maps can be overridden by using underscores, in the following way:
 ```
 RTSP_PATHS_TEST_SOURCE=rtsp://myurl ./rtsp-simple-server
 ```