Minor grammatical fixes to FAQ and LAYOUT

FAQ.md

@@ -30,14 +30,15 @@
     *   `discussion`: marks issues used for conversations about specific problems and questions
     *   `duplicate`: marks an issue that was closed as redundant (include the number of the original issue in the closing comment)
     *   `enhancement`: asks for, or adds, a new feature or new information
-    *   `filed-by-newcomer`: issue or pull request was filed by someone who is relatively new to GitHub and/or this project, and would appreciate guidance as well as feedback
+    *   `filed-by-newcomer`: issue or pull request was filed by someone who is relatively new to GitHub and/or this project,
+        and would appreciate guidance as well as feedback
     *   `getting-started`: issue or pull request is suitable for someone new to GitHub and/or this project
     *   `help-wanted`: a question or request for assistance
     *   `left-as-was`: marks an issue closed because the item in question will be left as it was
     *   `suitable-for-newcomer`: issue or pull request is a good starting point for someone who is relatively new to GitHub and/or this project
     *   `work-in-progress`: a pull request that is not yet ready for review
 
-*   *How create non-Python input cells?*
+*   *How can we create input cells for particular languages?*
 
     Use
 
@@ -46,7 +47,7 @@
         ~~~
 
     where `lang` is `bash` for the Unix Shell, `r` for R, `matlab` for MATLAB,
-    `sql` for SQL. For a full list, check
+    `python` for Python, and `sql` for SQL. For a full list, check:
 
     ~~~
     $ pandoc -v

LAYOUT.md

@@ -223,25 +223,32 @@ Each topic page must be structured as follows:
     Nothing else should be marked as bold text --- use *italics* for
     for all other emphasis.
 
-5.  For Unix Shell commands use
+5.  When laying out source code, use `{.lang}` as a style on the
+    opening `~~~` line.  For Unix Shell commands use:
 
         ~~~ {.bash}
         $ some-command
         ~~~
 
-    For R code use
+    For MATLAB use:
+
+        ~~~ {.matlab}
+        some code
+        ~~~
+
+    For R use:
 
         ~~~ {.r}
         some code
         ~~~
 
-    For MATLAB code use
+    For Python use:
 
-        ~~~ {.matlab}
+        ~~~ {.python}
         some code
         ~~~
 
-    For SQL code use
+    For SQL use:
 
         ~~~ {.sql}
         some code
@@ -278,6 +285,9 @@ be laid out like this:
     as it is simpler and prettier than alternatives like
     [reveal.js](http://lab.hakim.se/reveal-js/).
 
+3.  For examples of slideshows, please see the
+    [slideshow repository](https://github.com/swcarpentry/slideshows).
+
 ## Reference Guide
 
 The reference guide is a cheat sheet for learners to print, doodle on,