diff --git a/README.md b/README.md
index 502e9dc..0346a43 100644
--- a/README.md
+++ b/README.md
@@ -8,12 +8,12 @@ Providers must be listed in a file, one line should be one provider.
 Empty lines are ignored.
 Lines started with `#` are ignored.
 
-The file name must be passed with the `-p` parameter to the command.
+The file name must be passed with the `-p` parameter to the command or `-` for standard input.
 
 ## Addresses
 
 IP addresses or domain names which needs to be tested against the providers.
-The addresses must be passed with the `-i` parameter to the command. Multipla address can be listed, separate them by comma (`,`).
+The addresses must be passed with the `-i` parameter to the command. Multiple address can be listed, separate them by comma (`,`).
 
 ## Build
 
@@ -23,10 +23,20 @@ go build
 
 ## Execute
 
+Variations for the same operation:
+
 ```sh
 ./dnsbl-check -i 1.2.3.4 -p providers
 ```
 
+```sh
+./dnsbl-check -i 1.2.3.4 -p - < providers
+```
+
+```
+cat providers | ./dnsbl-check -i 1.2.3.4 -p -
+```
+
 ## Output
 
 The program returns every result in a new line, fields are separated by TAB character `\t`.
@@ -37,7 +47,7 @@ The line starts with the status: `OK` or `FAIL` or `ERR`
 - `ERR` returned if the address lookup failed
 Second field is the address
 Third field is the provider
-Fourth field is filled only if the statis is either `FAIL` or `ERR`. If the status is `FAIL` and no reason returned from te provider, the `unknown reason` text will be shown. If the status is `ERR` the error message will be shown here.
+Fourth field is filled only if the status is either `FAIL` or `ERR`. If the status is `FAIL` and no reason returned from te provider, the `unknown reason` text will be shown. If the status is `ERR` the error message will be shown here.
 
 ```
 OK	127.0.0.2	dyn.rbl.polspam.pl
@@ -76,7 +86,7 @@ awk '$5 == "b" && $2 == "ipv4" && $1 != "(hidden)" { print $1 }' < providers | \
 ./dnsbl-check -p - -i 1.2.3.4
 ```
 
-However it's recommended to keep the used provider list separetly, to save the resources of the providers.
+However it's recommended to keep the used provider list separately, to save the resources of the providers.
 
 ### Domain providers: