Fix minor typos

Author: jdutant

docs/manual.md

@@ -431,7 +431,7 @@ Specified within the `imagify` key.
 : string, path to the folder where images should be output. 
   Default `_imagify`.
 
-`ligs-path`
+`libgs-path`
 : string, path to the Ghostscript library. Default nil.
   This is not the Ghostscript program, but its library. It's
   passed to `dvisvgm`. See [DvisvgmMan] for details.

example-pandoc/expected.html

@@ -195,7 +195,7 @@ <h1 class="title">Imagify Example</h1>
 placed the next bit within a dummy Div block.</p>
 <div class="arbitraryDiv">
 <p>The display formula below is not explicitly marked to be imagified.
-However, it will be imagified in the filter’s <code>scope</code> option
+However, it will be imagified if the filter’s <code>scope</code> option
 is set to <code>all</code>: <img
 src="/Users/julien/GitHub/imagify/_imagify_files/7ec773f044030097c522e097ba5e42ba72207263.svg"
 title="P = \frac{T}{V}" style="display:block; margin: .5em auto;" /></p>

src/file.lua

@@ -65,7 +65,7 @@ function writeToFile(contents, filepath, mode)
 	  f:write(contents)
 	  f:close()
   else
-    return 'File not found'
+    return 'File not writeable'
   end
 end