Merge pull request #165 from kmiller621/issue-102-fixes

Add link to RegExper; remove note about pen and paper.

episodes/01-regular-expressions.md

@@ -69,6 +69,7 @@ So, what is `^[Oo]rgani.e\b` going to match?
 > > Organike
 > > ~~~
 > > Or, any other string that starts a line, begins with a letter `o` in lower or capital case, proceeds with `rgani`, has any character in the 7th position, and ends with the letter `e`.
+> > [See solution visulaized on Regexper.com](https://regexper.com/#%5E%5BOo%5Drgani.e)
 > {: .solution}
 {: .challenge}
 
@@ -167,9 +168,10 @@ So, what are these going to match?
 > {: .solution}
 {: .challenge}
 
-This logic is useful when you have lots of files in a directory, when those files have logical file names, and when you want to isolate a selection of files. It can be used for looking at cells in spreadsheets for certain values, or for extracting some data from a column of a spreadsheet to make new columns. There are many other contexts in which regex is useful when using a computer to search through a document, spreadsheet, or file structure.
+This logic is useful when you have lots of files in a directory, when those files have logical file names, and when you want to isolate a selection of files. It can be used for looking at cells in spreadsheets for certain values, or for extracting some data from a column of a spreadsheet to make new columns. There are many other contexts in which regex is useful when using a computer to search through a document, spreadsheet, or file structure. Some real-world use cases for regex are included on an [ACRL Tech Connect blog](https://acrl.ala.org/techconnect/post/fear-no-longer-regular-expressions/) .
 
-To embed this knowledge we won't - however - be using computers. Instead we'll use pen and paper. 
+
+To embed this knowledge we won't - however - be using computers. Instead we'll use pen and paper for now. 
 
 
 ### Exercise

index.md

@@ -11,5 +11,5 @@ This Library Carpentry lesson introduces people with library- and information-re
 
 > ## Prerequisites
 >
-> This lesson has no prerequisites. Ideally you will need a laptop and an internet connection, though this is not required.
+> This lesson has no prerequisites. You will need a laptop and an internet connection to complete Episode 2.
 {: .prereq}