bare minimum documentation

src/error.rs

@@ -1,15 +1,21 @@
 use thiserror::Error;
 
 #[derive(Debug, Error)]
+/// errors that can occur during interaction with a process
 pub enum Error {
+    /// there was a failure in obtaining the handle to a process
     #[error("failed to obtain handle")]
     ObtainHandleError(String),
+    /// there was a failure when reading or writing the process's memory
     #[error("failed to access process memory")]
     AccessMemoryError(String),
+    /// there was a failure in building the Process or Module struct
     #[error("failed to create process")]
     CreateProcessError(String),
+    /// there was a failure in creating a snapshot of processes or modules
     #[error("failed to create snapshot")]
     CreateSnapshotError(String),
+    /// there was a failure in conversion between integers
     #[error("failed to convert integer")]
     ConvertIntegerError(#[from] std::num::TryFromIntError),
 }