Merge pull request #848 from rpjday/simplegit

A couple minor tweaks/clarifications to "Viewing History" section, Ch. 2

Author: ben

book/02-git-basics/sections/viewing-history.asc

@@ -42,8 +42,8 @@ As you can see, this command lists each commit with its SHA-1 checksum, the auth
 A huge number and variety of options to the `git log` command are available to show you exactly what you're looking for.
 Here, we'll show you some of the most popular.
 
-One of the more helpful options is `-p`, which shows the difference introduced in each commit.
-You can also use `-2`, which limits the output to only the last two entries:
+One of the more helpful options is `-p` or `--patch`, which shows the difference (the _patch_ output) introduced in each commit.
+You can also limit the number of log entries displayed, such as using `-2` to show only the last two entries.
 
 [source,console]
 ----
@@ -227,7 +227,7 @@ Those are only some simple output-formatting options to `git log` – there are
 ==== Limiting Log Output
 
 In addition to output-formatting options, `git log` takes a number of useful limiting options – that is, options that let you show only a subset of commits.
-You've seen one such option already – the `-2` option, which show only the last two commits.
+You've seen one such option already – the `-2` option, which displays only the last two commits.
 In fact, you can do `-<n>`, where `n` is any integer to show the last `n` commits.
 In reality, you're unlikely to use that often, because Git by default pipes all output through a pager so you see only one page of log output at a time.