Fix some markdown issues.

Work around some cases where the old markdown parser differs from the
new Pulldown parser for the documentation.

lib/cretonne/src/ir/dfg.rs

@@ -705,7 +705,7 @@ impl DataFlowGraph {
     /// Returns the position of `val` before removal.
     ///
     /// *Important*: to ensure O(1) deletion, this method swaps the removed parameter with the
-    /// last `ebb`` parameter. This can disrupt all the branch instructions jumping to this
+    /// last `ebb` parameter. This can disrupt all the branch instructions jumping to this
     /// `ebb` for which you have to change the branch argument order if necessary.
     ///
     /// Panics if `val` is not an EBB parameter.

lib/cretonne/src/ir/immediates.rs

@@ -526,7 +526,7 @@ impl Ieee32 {
         Ieee32(x)
     }
 
-    /// Create an `Ieee32` number representing 2.0^n.
+    /// Create an `Ieee32` number representing `2.0^n`.
     pub fn pow2<I: Into<i32>>(n: I) -> Ieee32 {
         let n = n.into();
         let w = 8;
@@ -578,7 +578,7 @@ impl Ieee64 {
         Ieee64(x)
     }
 
-    /// Create an `Ieee64` number representing 2.0^n.
+    /// Create an `Ieee64` number representing `2.0^n`.
     pub fn pow2<I: Into<i64>>(n: I) -> Ieee64 {
         let n = n.into();
         let w = 11;

lib/cretonne/src/ir/types.rs

@@ -265,8 +265,9 @@ impl Type {
     }
 
     /// True iff:
-    ///     1) self.lane_count() == other.lane_count() and
-    ///     2) self.lane_bits() >= other.lane_bits()
+    ///
+    /// 1. `self.lane_count() == other.lane_count()` and
+    /// 2. `self.lane_bits() >= other.lane_bits()`
     pub fn wider_or_equal(self, other: Type) -> bool {
         self.lane_count() == other.lane_count() && self.lane_bits() >= other.lane_bits()
     }

lib/cretonne/src/result.rs

@@ -23,10 +23,10 @@ pub enum CtonError {
 
     /// An implementation limit was exceeded.
     ///
-    /// Cretonne can compile very large and complicated functions, but the implementation has
-    /// limits that cause compilation to fail when they are exceeded.
+    /// Cretonne can compile very large and complicated functions, but the [implementation has
+    /// limits][limits] that cause compilation to fail when they are exceeded.
     ///
-    /// See http://cretonne.readthedocs.io/en/latest/langref.html#implementation-limits
+    /// [limits]: http://cretonne.readthedocs.io/en/latest/langref.html#implementation-limits
     ImplLimitExceeded,
 
     /// The code size for the function is too large.

lib/filecheck/src/lib.rs

@@ -10,6 +10,7 @@
 //! # Directives
 //!
 //! These are the directives recognized by *filecheck*:
+//!
 //! <pre class="rust">
 //! <a href="#the-check-directive">check: <i>&lt;pattern&gt;</i></a>
 //! <a href="#the-sameln-directive">sameln: <i>&lt;pattern&gt;</i></a>
@@ -18,6 +19,7 @@
 //! <a href="#the-not-directive">not: <i>&lt;pattern&gt;</i></a>
 //! <a href="#the-regex-directive">regex: <i>&lt;variable&gt;</i>=<i>&lt;regex&gt;</i></a>
 //! </pre>
+//!
 //! Each directive is described in more detail below.
 //!
 //! ## Example

lib/wasm/src/func_translator.rs

@@ -43,8 +43,9 @@ impl FuncTranslator {
     /// - The declaration of *locals*, and
     /// - The function *body* as an expression.
     ///
-    /// See [the WebAssembly specification]
-    /// (http://webassembly.github.io/spec/binary/modules.html#code-section).
+    /// See [the WebAssembly specification][wasm].
+    ///
+    /// [wasm]: http://webassembly.github.io/spec/binary/modules.html#code-section
     ///
     /// The Cretonne IR function `func` should be completely empty except for the `func.signature`
     /// and `func.name` fields. The signature may contain special-purpose arguments which are not