Merge pull request #771 from nathanrboyer/patch-1

Update cookbook.md

docs/src/cookbook.md

@@ -70,16 +70,22 @@ Generating project MyPkg:
 In the first few lines you can see the location of your new package, here
 the directory `/home/tim/.julia/dev/MyPkg`.
 
-Before doing anything else, let's try it out:
+Press `]` to enter the [Pkg REPL](https://pkgdocs.julialang.org/v1/getting-started/#Basic-Usage).
+Then add the new package to your current environment with the `dev` command.
+
+```julia
+(<environment>) pkg> dev MyPkg   # the dev command will look in the ~/.julia/dev folder automatically
+```
+
+Press the backspace key to return to the Julia REPL.
+
+Now let's try it out:
 
 ```julia
 julia> using Revise   # you must do this before loading any revisable packages
 
 julia> using MyPkg
 [ Info: Precompiling MyPkg [102b5b08-597c-4d40-b98a-e9249f4d01f4]
-
-julia> MyPkg.greet()
-Hello World!
 ```
 
 (It's perfectly fine if you see a different string of digits and letters after the "Precompiling MyPkg" message.)
@@ -99,28 +105,28 @@ You should see something like this:
 ```julia
 module MyPkg
 
-greet() = print("Hello World!")
+# Write your package code here.
 
-end # module
+end
 ```
 
-This is the basic package created by PkgTemplates. Let's modify `greet` to return
-a different message:
+This is the basic package created by PkgTemplates.
+Let's create a simple `greet` function to return a message:
 
 ```julia
 module MyPkg
 
-greet() = print("Hello, revised World!")
+greet() = print("Hello World!")
 
 end # module
 ```
 
-Now go back to that same Julia session, and try calling `greet` again.
+Now go back to that same Julia session, and try calling `greet`.
 After a pause (while Revise's internal code compiles), you should see
 
 ```julia
 julia> MyPkg.greet()
-Hello, revised World!
+Hello World!
 ```
 
 From this point forward, revisions should be fast. You can modify `MyPkg.jl`
@@ -136,7 +142,7 @@ above, you might first have to delete the package with `Pkg.rm("MyPkg")` followi
 a complete removal from your `dev` directory.)
 
 ```julia
-julia> using Pkg
+julia> using Revise, Pkg
 
 julia> cd(Pkg.devdir())   # take us to the standard "development directory"