Update README.md

Author: Octalbyte

README.md

@@ -1,2 +1,24 @@
 # minparse
 A minimal argument parser
+## Usage
+
+```rust
+use minparse::minparse;
+
+minparse::process_name();
+// => Get process name <String>
+minparse::switches();
+// => Get options that do not require a value (e.g --help) Vec<String>
+minparse::subcommands();
+// => Subcommands (do not have prefixed `--`. Includes process name) Vec<String> example: vec!["cargo", "run"] 
+minparse::fields()
+// => Fields with a value (e.g. --port 8080) HashMap<String, String> 
+```
+## Donate
+```toml
+# Wallets to which you can donate :)
+
+  BTC = "3NC14JNuzdLkxJTdNa6bnFXaYzMKMc1Uwt"
+  ETH = "0xc41c0f847d58121f552c683e454ddafeb415f25e"
+  XMR = "875smxvwbP64MFZnHrHwHcGahoEB4a5ARGCBidr95LqL4GEPiB4T8J74UB5TzrXK3wbTZ1iidfYoV37KZq1vqWCQSNztDAF"  
+```