Unify use of single quotes to mark shell arguments and variables

chemotaxis · chemotaxis · commit 23ffca45f7dd · 2021-07-19T00:46:06.000-04:00
The first paragraph uses single quotes when referring to shell arguments
and variables, but the rest of the docs use double quotes.  This commit
switches to using single quotes throughout the docs.

I prefer to use single quotes inside string literals because Go uses
double quotes to define a string literal.
diff --git a/pkg/cmd/alias/set/set.go b/pkg/cmd/alias/set/set.go
@@ -43,9 +43,9 @@ func NewCmdSet(f *cmdutil.Factory, runF func(*SetOptions) error) *cobra.Command
 			for commands with mixed quotes or multiple lines.
 
 			If '--shell' is specified, the alias will be run through a shell interpreter (sh). This allows you
-			to compose commands with "|" or redirect with ">". Note that extra arguments following the alias
+			to compose commands with '|' or redirect with '>'. Note that extra arguments following the alias
 			will not be automatically passed to the expanded expression. To have a shell alias receive
-			arguments, you must explicitly accept them using "$1", "$2", etc., or "$@" to accept all of them.
+			arguments, you must explicitly accept them using '$1', '$2', etc., or '$@' to accept all of them.
 
 			Quotes must always be used when defining a command as in the examples unless you pass '-'
 			as the expansion parameter and pipe your command to 'gh alias set'.
