Improve wording

Co-authored-by: Joshua Nelson <[email protected]>

Author: camelid

compiler/rustc_middle/src/mir/mod.rs

@@ -1078,12 +1078,12 @@ pub struct VarDebugInfo<'tcx> {
 rustc_index::newtype_index! {
     /// The unit of the MIR [control-flow graph][CFG].
     ///
-    /// There is no branching (e.g., `if`s, function calls, etc.) within a basic block, which makes
+    /// There are no branches (e.g., `if`s, function calls, etc.) within a basic block, which makes
     /// it easier to do [data-flow analyses] and optimizations. Instead, branches are represented
     /// as an edge in a graph between basic blocks.
     ///
-    /// Basic blocks consist of a series of [statements][`Statement`], ending with a
-    /// [terminator][`Terminator`]. Basic blocks can have multiple predecessors and successors.
+    /// Basic blocks consist of a series of [statements][Statement], ending with a
+    /// [terminator][Terminator]. Basic blocks can have multiple predecessors and successors.
     ///
     /// Read more about basic blocks in the [rustc-dev-guide][guide-mir].
     ///