updated documentation to reflected the help

removed the $ to simplify copying commands from github

README.md

@@ -2,22 +2,24 @@
 
 `showcert` displays SSL certificate attributes in JSON format.
 
-The target can be a local file or a remote server. In the latter scenario, 
+The target can be a local file or a remote server. In the latter scenario,
 the argument is a server name and port if different from the default TLS port 443.
 
 ## Examples
 
 The simplest example would be something like:
 
 ```
-$ showcert google.com
+showcert google.com
 ```
 
 For more details about the options available with `showcert`, execute `showcert` with the `--help` option:
 
 ```
-$ showcert --help
+showcert --help
+```
 
+```
 showcert shows details about local or remote SSL certificates
 
 USAGE:
@@ -26,25 +28,27 @@ USAGE:
 FLAGS:
   -h, --help                  Displays this help
   -V, --version               Displays application version
-  -c, --cert <cert_file>      Parses a local certificate file
-  --cafile <PEM_file>         Loads CAs from a PEM file
-  -d, --domain <domain_name>  Parses a remote certificate
+  -f, --file <cert_file>      Parses a local certificate file (PEM format)
   -v, --verify                Requires certificate chain verification
+  --host <host:[port]>        Parses a remote certificate for a given host
+  --cafile <PEM_file>         Loads CAs from a PEM file
+  --cadir <directory>         Loads CAs from a directory containing PEM files
 
 EXAMPLES:
   showcert google.com
-  showcert --domain google.com
-  showcert --domain google.com:443
+  showcert --host google.com
+  showcert --host google.com:443
   showcert --verify google.com
   showcert --verify --domain google.com
-  showcert --cert some_cert.pem
+  showcert --file some_cert.pem
   showcert --cafile some_ca.pem
+  showcert --cadir some_directory
 ```
 
 For a better user experience, you can pipe the `showcert` JSON output to [jq](https://stedolan.github.io/jq/).
 
 ```
-$ showcert --verify google.com | jq
+showcert --verify google.com | jq
 ```
 ```json
 {
@@ -89,7 +93,9 @@ To extract a specific attribute of the JSON file, you can use `jq`. Here are som
 Extract the first raw PEM certificate:
 
 ```
-$ showcert google.com | jq -r '.chains[0].certificates[0].pem'
+showcert google.com | jq -r '.chains[0].certificates[0].pem'
+```
+```
 -----BEGIN CERTIFICATE-----
 MIIN7jCCDNagAwIBAgIRAKz/vGtNq+cyCkMq+UTzB2MwDQYJKoZIhvcNAQELBQAw
 RjELMAkGA1UEBhMCVVMxIjAgBgNVBAoTGUdvb2dsZSBUcnVzdCBTZXJ2aWNlcyBM
@@ -99,7 +105,9 @@ RjELMAkGA1UEBhMCVVMxIjAgBgNVBAoTGUdvb2dsZSBUcnVzdCBTZXJ2aWNlcyBM
 List all the SHA256 fingerprints:
 
 ```
-$ showcert --verify google.com | jq '.chains[].certificates[].sha256_fingerprint'
+showcert --verify google.com | jq '.chains[].certificates[].sha256_fingerprint'
+```
+```
 "6D:8C:E1:6A:5C:A3:F0:91:40:DE:07:37:AD:4A:AD:DA:66:6A:AF:14:16:AB:9F:4E:7E:E8:40:8B:E9:1B:7B:F3"
 "23:EC:B0:3E:EC:17:33:8C:4E:33:A6:B4:8A:41:DC:3C:DA:12:28:1B:BC:3F:F8:13:C0:58:9D:6C:C2:38:75:22"
 "2A:57:54:71:E3:13:40:BC:21:58:1C:BD:2C:F1:3E:15:84:63:20:3E:CE:94:BC:F9:D3:CC:19:6B:F0:9A:54:72"
@@ -112,7 +120,9 @@ $ showcert --verify google.com | jq '.chains[].certificates[].sha256_fingerprint
 Display all authority key ids for CA certificates:
 
 ```
-$ showcert --verify google.com | jq '.chains[].certificates[] | select(.certificate_authority == true) | .authority_key_id'
+showcert --verify google.com | jq '.chains[].certificates[] | select(.certificate_authority == true) | .authority_key_id'
+```
+```
 "E4:AF:2B:26:71:1A:2B:48:27:85:2F:52:66:2C:EF:F0:89:13:71:3E"
 null
 "E4:AF:2B:26:71:1A:2B:48:27:85:2F:52:66:2C:EF:F0:89:13:71:3E"
@@ -127,21 +137,21 @@ A docker image is available at https://hub.docker.com/r/andreburgaud/showcert.
 To use the image and fetch the Google certificates:
 
 ```
-$ docker run --rm andreburgaud/showcert google.com
+docker run --rm andreburgaud/showcert google.com
 ...
 ```
 
 You can also pipe the result to [jq](https://stedolan.github.io/jq/):
 
 ```
-$ docker run --rm andreburgaud/showcert google.com | jq
+docker run --rm andreburgaud/showcert google.com | jq
 ...
 ```
 
 or to extract only the first certificate in PEM format:
 
 ```
-$ docker run --rm andreburgaud/showcert google.com | jq -r '.chains[0].certificates[0].pem'
+docker run --rm andreburgaud/showcert google.com | jq -r '.chains[0].certificates[0].pem'
 ...
 ```
 
@@ -151,33 +161,33 @@ $ docker run --rm andreburgaud/showcert google.com | jq -r '.chains[0].certifica
 
 If you have [just](https://github.com/casey/just) and [Go](https://go.dev/) installed:
 ```
-$ just build
+just build
 ```
 
 If you only have [Go](https://go.dev/) installed:
 
 ```
-$ go build -o showcert showcert/cmd/showcert
+go build -o showcert showcert/cmd/showcert
 ```
 
 ### Release
 
-`Showcert` uses [GoReaser](https://goreleaser.com/) to cross-compile the project and deploy binaries to GitHub. 
+`Showcert` uses [GoReaser](https://goreleaser.com/) to cross-compile the project and deploy binaries to GitHub.
 
 To generate a local release, you can execute the following command
 
 ```
-$ just local-release
+just local-release
 ```
 
 If you only have [Go](https://go.dev/) installed:
 
 ```
-$ go build -o showcert -ldflags="-s -w -X 'showcert/internal/cli.Version=1.2.3'" showcert/cmd/showcert
+go build -o showcert -ldflags="-s -w -X 'showcert/internal/cli.Version=1.2.3'" showcert/cmd/showcert
 ```
 
 ## License
 
-The `showcert` source code is released under the [MIT license](LICENSE). 
+The `showcert` source code is released under the [MIT license](LICENSE).
 
 `showcert` includes some code from [CFSSL](https://github.com/cloudflare/cfssl) released under a BSD-2-Clause license. References to `CFSSL` are included in the appropriate `showcert` files.