Reading files (#465)

* wip - start of reading files

* everything is better with more Kent Beck quotes

* formatting

* small corrections

* extracting titles

* move post into a post file and some typos

* read description

* formatting

* minor edits

* reading tags and intro-ing final part

* first draft

* typos and grammar

* bit terser

* add link to files

* some waffle

* a bit of background and improved API

* furniture arranging

* some of the New calls weren't renamed to NewPostsFromFS in the text

* notes on steel thread

* typo

* minor grammar fix and not bothering to talk about the particular definition of unit tests

* blah

* adding some further reading, notes, link to DI chapter

* fix code snippet typing

* some typos and corrections

* add to toc

* better strapline

* Copy editing

Co-authored-by: ruthmoog <ruthmoog@gmail.com>

* less wordy

* brevity

* copy edits

* trim that prefix

* more copy editing

Co-authored-by: Chris James <quii@hey.com>
Co-authored-by: ruthmoog <ruthmoog@gmail.com>

README.md

@@ -57,6 +57,7 @@ I am proud to offer this resource for free, but if you wish to give some appreci
 13. [Context](context.md) - Use the context package to manage and cancel long-running processes
 14. [Intro to property based tests](roman-numerals.md) - Practice some TDD with the Roman Numerals kata and get a brief intro to property based tests
 15. [Maths](math.md) - Use the `math` package to draw an SVG clock
+16. [Reading files](reading-files.md) - Read files and process them
 
 ### Build an application
 

SUMMARY.md

@@ -21,6 +21,7 @@
 * [Context](context.md)
 * [Intro to property based tests](roman-numerals.md)
 * [Maths](math.md)
+* [Reading files](reading-files.md)
 
 ## Build an application
 

build.books.sh

@@ -49,6 +49,7 @@ docker run -v `pwd`:/source jagregory/pandoc -o learn-go-with-tests.epub --latex
     context.md \
     roman-numerals.md \
     math.md \
+    reading-files.md \
     intro-to-generics.md \
     app-intro.md \
     http-server.md \