better Docs style

README.html

@@ -907,8 +907,8 @@ <h2 id="gganno"><code>gganno</code></h2>
 matrix will be converted into a long-data.frame (<code>gganno</code>
 always regard row as the observations) with following columns.</p>
 <ul>
-<li><code>.slice</code>: the slice row (which = “row”) or column (which
-= “column”) number.</li>
+<li><code>.slice</code>: the slice row (which = <code>&quot;row&quot;</code>) or
+column (which = <code>&quot;column&quot;</code>) number.</li>
 <li><code>.row_names</code> and <code>.column_names</code>: the row and
 column names of the original matrix (only applicable when names
 exist).</li>

README.md

@@ -382,8 +382,8 @@ created by `ggplot(data, aes(.data$x))` /
 converted into a long-data.frame (`gganno` always regard row as the
 observations) with following columns.
 
-- `.slice`: the slice row (which = “row”) or column (which = “column”)
-  number.
+- `.slice`: the slice row (which = `"row"`) or column (which =
+  `"column"`) number.
 - `.row_names` and `.column_names`: the row and column names of the
   original matrix (only applicable when names exist).
 - `.row_index` and `.column_index`: the row and column index of the

vignettes/eheat.Rmd

@@ -294,7 +294,7 @@ which accepts a ggplot2 object with a default data and mapping created by
 original matrix will be converted into a long-data.frame (`gganno` always regard
 row as the observations) with following columns.
 
-- `.slice`: the slice row (which = "row") or column (which = "column")
+- `.slice`: the slice row (which = `"row"`) or column (which = `"column"`)
   number.
 - `.row_names` and `.column_names`: the row and column names of the original
   matrix (only applicable when names exist).