Add language specifiers for markdown code blocks

Author: regexident

README.md

@@ -121,7 +121,7 @@ All webrtc dependent crates and examples are included in this repository at the
 
 To build all webrtc examples:
 
-```
+```shell
 cd examples
 cargo test # build all examples (maybe very slow)
 #[ or just build single example (much faster)
@@ -133,7 +133,7 @@ cargo build --example play-from-disk-h264 # build play-from-disk-h264 example on
 
 To build webrtc crate:
 
-```
+```shell
 cargo build [or clippy or test or fmt]
 ```
 

dtls/examples/certificates/README.md

@@ -26,7 +26,7 @@ $ rm "${EXTFILE}" "${SERVER_NAME}.csr" "${CLIENT_NAME}.csr"
 ```
 
 in pion/examples/util/util.go, convert ECPrivateKey to PKCS8PrivateKey
-```
+```go
 func LoadKey(path string) (crypto.PrivateKey, error) {
     ....
     if key, err := x509.ParseECPrivateKey(block.Bytes); err == nil {

examples/examples/broadcast/README.md

@@ -5,7 +5,7 @@ This could serve as the building block to building conferencing software, and ot
 
 ## Instructions
 ### Build broadcast
-```
+```shell
 cargo build --example broadcast
 ```
 

examples/examples/data-channels-create/README.md

@@ -3,7 +3,7 @@ data-channels-create is a WebRTC.rs application that shows how you can send/recv
 
 ## Instructions
 ### Build data-channels-create
-```
+```shell
 cargo build --example data-channels-create
 ```
 

examples/examples/data-channels-detach-create/README.md

@@ -6,7 +6,7 @@ This allows direct access the the underlying [webrtc-rs/data](https://github.com
 The example mirrors the data-channels-create example.
 
 ## Install
-```
+```shell
 cargo build --example data-channels-detach-create
 ```
 

examples/examples/data-channels-detach/README.md

@@ -3,7 +3,7 @@ data-channels is a WebRTC.rs application that shows how you can send/recv DataCh
 
 ## Instructions
 ### Build data-channels-detach
-```
+```shell
 cargo build --example data-channels-detach
 ```
 

examples/examples/data-channels-flow-control/README.md

@@ -25,7 +25,7 @@ application to pace the amount of data to be pushed into the data channel.
 ## How to run the example code
 The demo code implements two endpoints (requester and responder) in it.
 
-```
+```plain
                         signaling messages
            +----------------------------------------+
            |                                        |
@@ -45,7 +45,7 @@ Once the data channel is successfully opened, requester will start sending a ser
 
 Here's how to run the code:
 
-```
+```shell
 $ cargo run --release --example data-channels-flow-control
     Finished release [optimized] target(s) in 0.36s
      Running `target\release\examples\data-channels-flow-control.exe`

examples/examples/data-channels/README.md

@@ -3,7 +3,7 @@ data-channels is a WebRTC.rs application that shows how you can send/recv DataCh
 
 ## Instructions
 ### Build data-channels
-```
+shell
 cargo build --example data-channels
 ```
 

examples/examples/ice-restart/README.md

@@ -4,12 +4,12 @@ ice-restart demonstrates WebRTC.rs ICE Restart abilities.
 ## Instructions
 
 ### Build ice-restart
-```
+```shell
 cargo build --example ice-restart
 ```
 
 ### Run ice-restart
-```
+```shell
 cargo run --example ice-restart
 ```
 

examples/examples/insertable-streams/README.md

@@ -8,12 +8,12 @@ E2E encyption, add metadata or insert a completely different video feed!
 
 ## Instructions
 ### Create IVF named `output.ivf` that contains a VP8 track
-```
+shell
 ffmpeg -i $INPUT_FILE -g 30 output.ivf
 ```
 
 ### Build insertable-streams
-```
+```shell
 cargo build --example insertable-streams
 ```
 

examples/examples/offer-answer/README.md

@@ -6,12 +6,12 @@ The `answer` side acts like a HTTP server and should therefore be ran first.
 
 ## Instructions
 First run `answer`:
-```sh
+```shell
 cargo build --example answer
 ./target/debug/examples/answer
 ```
 Next, run `offer`:
-```sh
+```shell
 cargo build --example offer
 ./target/debug/examples/offer
 ```

examples/examples/ortc/README.md

@@ -8,7 +8,7 @@ In this example we have defined a simple JSON based signaling protocol.
 
 ## Instructions
 ### Build ortc
-```
+```shell
 cargo build --example ortc
 ```
 

examples/examples/play-from-disk-h264/README.md

@@ -3,13 +3,13 @@ play-from-disk-h264 demonstrates how to send h264 video and/or audio to your bro
 
 ## Instructions
 ### Create IVF named `output.264` that contains a H264 track and/or `output.ogg` that contains a Opus track
-```
+```shell
 ffmpeg -i $INPUT_FILE -an -c:v libx264 -bsf:v h264_mp4toannexb -b:v 2M -max_delay 0 -bf 0 output.h264
 ffmpeg -i $INPUT_FILE -c:a libopus -page_duration 20000 -vn output.ogg
 ```
 
 ### Build play-from-disk-h264
-```
+```shell
 cargo build --example play-from-disk-h264
 ```
 

examples/examples/play-from-disk-renegotiation/README.md

@@ -6,12 +6,12 @@ For a simpler example of playing a file from disk we also have [examples/play-fr
 ## Instructions
 
 ### Build play-from-disk-renegotiation
-```
+```shell
 cargo build --example play-from-disk-renegotiation
 ```
 
 ### Create IVF named `output.ivf` that contains a VP8 track
-```
+```shell
 ffmpeg -i $INPUT_FILE -g 30 output.ivf
 ```
 

examples/examples/play-from-disk-vpx/README.md

@@ -3,14 +3,14 @@ play-from-disk-vpx demonstrates how to send vp8/vp8 video and/or audio to your b
 
 ## Instructions
 ### Create IVF named `output_vp8.ivf` or `output_vp9.ivf` that contains a VP8/VP9 track and/or `output.ogg` that contains a Opus track
-```
+```shell
 ffmpeg -i $INPUT_FILE -g 30 output_vp8.ivf
 ffmpeg -i $INPUT_FILE -g 30 -c libvpx-vp9 output_vp9.ivf
 ffmpeg -i $INPUT_FILE -map 0:a -c:a dca -ac 2 -c:a libopus -page_duration 20000 -vn output.ogg
 ```
 
 ### Build play-from-disk-vpx
-```
+```shell
 cargo build --example play-from-disk-vpx
 ```
 

examples/examples/reflect/README.md

@@ -3,7 +3,7 @@ reflect demonstrates how with one PeerConnection you can send video to webrtc-rs
 
 ## Instructions
 ### Build reflect
-```
+```shell
 cargo build --example reflect
 ```
 

examples/examples/rtp-forwarder/README.md

@@ -3,7 +3,7 @@ rtp-forwarder is a simple application that shows how to forward your webcam/micr
 
 ## Instructions
 ### Build rtp-forwarder
-```
+```shell
 cargo build --example rtp-forwarder
 ```
 

examples/examples/rtp-to-webrtc/README.md

@@ -5,7 +5,7 @@ With this example we have pre-made GStreamer and ffmpeg pipelines, but you can u
 
 ## Instructions
 ### Build rtp-to-webrtc
-```
+```shell
 cargo build --example rtp-to-webrtc
 ```
 
@@ -28,12 +28,12 @@ You can use any software to send VP8 packets to port 5004. We also have the pre
 
 
 #### GStreamer
-```
+```shell
 gst-launch-1.0 videotestsrc ! video/x-raw,width=640,height=480,format=I420 ! vp8enc error-resilient=partitions keyframe-max-dist=10 auto-alt-ref=true cpu-used=5 deadline=1 ! rtpvp8pay ! udpsink host=127.0.0.1 port=5004
 ```
 
 #### ffmpeg
-```
+```shell
 ffmpeg -re -f lavfi -i testsrc=size=640x480:rate=30 -vcodec libvpx -cpu-used 5 -deadline 1 -g 10 -error-resilient 1 -auto-alt-ref 1 -f rtp rtp://127.0.0.1:5004?pkt_size=1200
 ```
 

examples/examples/save-to-disk-h264/README.md

@@ -3,7 +3,7 @@ save-to-disk-h264 is a simple application that shows how to record your webcam/m
 
 ## Instructions
 ### Build save-to-disk-h264
-```
+```shell
 cargo build --example save-to-disk-h264
 ```
 

examples/examples/save-to-disk-vpx/README.md

@@ -3,7 +3,7 @@ save-to-disk-vpx is a simple application that shows how to record your webcam/mi
 
 ## Instructions
 ### Build save-to-disk-vpx
-```
+```shell
 cargo build --example save-to-disk-vpx
 ```
 

examples/examples/simulcast/README.md

@@ -7,7 +7,7 @@ is selected.
 
 ## Instructions
 ### Build simulcast
-```
+shell
 cargo build --example simulcast
 ```
 

examples/examples/swap-tracks/README.md

@@ -3,7 +3,7 @@ swap-tracks demonstrates how to swap multiple incoming tracks on a single outgoi
 
 ## Instructions
 ### Build swap-tracks
-```
+```shell
 cargo build --example swap-tracks
 ```