docs: fix typos (#119)

CHANGELOG.md

@@ -48,7 +48,7 @@ The gist of it is:
 
 #### Added
 
-- Links to code items in the code documenation.
+- Links to code items in the code documentation.
 - New `"serde"` feature that allows serializing some library types, useful for making simple reproducible bug reports.
 - New variants for `error::PubGrubError` which are `DependencyOnTheEmptySet`,
   `SelfDependency`, `ErrorChoosingPackageVersion` and `ErrorInShouldCancel`.

src/internal/small_vec.rs

@@ -202,11 +202,11 @@ pub mod tests {
 
     proptest! {
         #[test]
-        fn push_and_pop(comands: Vec<Option<u8>>) {
+        fn push_and_pop(commands: Vec<Option<u8>>) {
             let mut v = vec![];
             let mut sv = SmallVec::Empty;
-            for comand in comands {
-                match comand {
+            for command in commands {
+                match command {
                     Some(i) => {
                         v.push(i);
                         sv.push(i);

src/range.rs

@@ -491,7 +491,7 @@ pub mod tests {
                     }
                 }
 
-                // If we still have a start bound, but didnt have enough deltas to complete another
+                // If we still have a start bound, but didn't have enough deltas to complete another
                 // segment, we add an unbounded upperbound.
                 if let Some(start_bound) = start {
                     segments.push((start_bound, Unbounded));