Document "everything"

This is a good start but many things need to be documented better, but
this will at least allow us to turn on #[deny(missing_docs)]

src/requests/mod.rs

@@ -1 +1,2 @@
+/// Data structures for the MastodonClient::statuses method
 pub mod statuses;

src/requests/statuses.rs

@@ -1,5 +1,7 @@
 use std::borrow::Cow;
 
+/// Builder for making a client.statuses() call
+///
 /// # Example
 ///
 /// ```
@@ -19,40 +21,118 @@ pub struct StatusesRequest<'a> {
 }
 
 impl<'a> StatusesRequest<'a> {
+    /// Construct a new `StatusesRequest` object
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// # extern crate elefren;
+    /// # use elefren::StatusesRequest;
+    /// let request = StatusesRequest::new();
+    /// ```
     pub fn new() -> Self {
         Self::default()
     }
 
+    /// Set the `?only_media=1` flag for the .statuses() request
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// # extern crate elefren;
+    /// # use elefren::StatusesRequest;
+    /// let request = StatusesRequest::new().only_media();
+    /// assert_eq!(&request.to_querystring(), "?only_media=1");
     pub fn only_media(mut self) -> Self {
         self.only_media = true;
         self
     }
 
+    /// Set the `?exclude_replies=1` flag for the .statuses() request
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// # extern crate elefren;
+    /// # use elefren::StatusesRequest;
+    /// let request = StatusesRequest::new().exclude_replies();
+    /// assert_eq!(&request.to_querystring(), "?exclude_replies=1");
+    /// ```
     pub fn exclude_replies(mut self) -> Self {
         self.exclude_replies = true;
         self
     }
 
+    /// Set the `?pinned=1` flag for the .statuses() request
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// # extern crate elefren;
+    /// # use elefren::StatusesRequest;
+    /// let request = StatusesRequest::new().pinned();
+    /// assert_eq!(&request.to_querystring(), "?pinned=1");
+    /// ```
     pub fn pinned(mut self) -> Self {
         self.pinned = true;
         self
     }
 
+    /// Set the `?max_id=:max_id` flag for the .statuses() request
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// # extern crate elefren;
+    /// # use elefren::StatusesRequest;
+    /// let request = StatusesRequest::new().max_id("foo");
+    /// assert_eq!(&request.to_querystring(), "?max_id=foo");
+    /// ```
     pub fn max_id<S: Into<Cow<'a, str>>>(mut self, max_id: S) -> Self {
         self.max_id = Some(max_id.into());
         self
     }
 
+    /// Set the `?since_id=:since_id` flag for the .statuses() request
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// # extern crate elefren;
+    /// # use elefren::StatusesRequest;
+    /// let request = StatusesRequest::new().since_id("foo");
+    /// assert_eq!(&request.to_querystring(), "?since_id=foo");
+    /// ```
     pub fn since_id<S: Into<Cow<'a, str>>>(mut self, since_id: S) -> Self {
         self.since_id = Some(since_id.into());
         self
     }
 
+    /// Set the `?limit=:limit` flag for the .statuses() request
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// # extern crate elefren;
+    /// # use elefren::StatusesRequest;
+    /// let request = StatusesRequest::new().limit(10);
+    /// assert_eq!(&request.to_querystring(), "?limit=10");
+    /// ```
     pub fn limit(mut self, limit: usize) -> Self {
         self.limit = Some(limit);
         self
     }
 
+    /// Turns this builder into a querystring
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// # extern crate elefren;
+    /// # use elefren::StatusesRequest;
+    /// let request = StatusesRequest::new().limit(10).pinned();
+    /// assert_eq!(&request.to_querystring(), "?pinned=1&limit=10");
+    /// ```
     pub fn to_querystring(&self) -> String {
         let mut opts = vec![];