Fix multiple grammar mistakes (#174)

Cargo.toml

@@ -24,7 +24,7 @@ debug = "full"              # No one needs an undebuggable release binary
 lto = true                  # reduces binary size by ~14%
 opt-level = "s"             # reduces binary size by ~25%
 panic = "abort"             # reduces binary size by ~50% in combination with -Zbuild-std-features=panic_immediate_abort
-split-debuginfo = "packed"  # generates a seperate *.dwp/*.dSYM so the binary can get stripped
+split-debuginfo = "packed"  # generates a separate *.dwp/*.dSYM so the binary can get stripped
 strip = "symbols"           # See split-debuginfo - allows us to drop the size by ~65%
 incremental = true          # Improves re-compile times
 

src/tui.rs

@@ -16,7 +16,7 @@
 //! set up callbacks for when it is clicked, and then stop worrying about it.
 //!
 //! The downside of immediate mode is that your UI code _may_ become cluttered.
-//! The upside however is that that you cannot leak UI elements, you don't need to
+//! The upside however is that you cannot leak UI elements, you don't need to
 //! worry about lifetimes nor callbacks, and that simple UIs are simple to write.
 //!
 //! More importantly though, the primary reason for this is that the

src/unicode/measurement.rs

@@ -486,7 +486,7 @@ impl<'doc> MeasurementConfig<'doc> {
     }
 }
 
-/// Seeks forward to to the given line start.
+/// Seeks forward to the given line start.
 ///
 /// If given a piece of `text`, and assuming you're currently at `offset` which
 /// is on the logical line `line`, this will seek forward until the logical line