Making it more clear that sourced files are shell

Addresses part of the concerns from #69

README.md

@@ -117,6 +117,8 @@ There are more scripts available in the [demos directory](demo/) that could help
 
 There are additional features that the program supports. Try using `mo --help` to see what is available.
 
+Please note that this command is written in Bash and pulls data from either the environment or (when using `--source`) from a text file that will be sourced and loaded into the environment, which means you will need to have Bash-style variables defined. Please see the examples in `demo/` for different ways you can use `mo`.
+
 
 Enhancements
 -----------

mo

@@ -38,7 +38,8 @@
 #/          This message.
 #/    -s=FILE, --source=FILE
 #/          Load FILE into the environment before processing templates.
-#/          Can be used multiple times.
+#/          Can be used multiple times. The file must be a valid shell script
+#/          and should only contain variable assignments.
 #/    -o=DELIM, --open=DELIM
 #/          Set the opening delimiter. Default is "{{".
 #/    -c=DELIM, --close=DELIM
@@ -1949,7 +1950,7 @@ mo::tokenizeTagContentsSingleQuote() {
 
 # Save the original command's path for usage later
 MO_ORIGINAL_COMMAND="$(cd "${BASH_SOURCE[0]%/*}" || exit 1; pwd)/${BASH_SOURCE[0]##*/}"
-MO_VERSION="3.0.3"
+MO_VERSION="3.0.4"
 
 # If sourced, load all functions.
 # If executed, perform the actions as expected.

tests/help

@@ -43,7 +43,8 @@ Options:
          This message.
    -s=FILE, --source=FILE
          Load FILE into the environment before processing templates.
-         Can be used multiple times.
+         Can be used multiple times. The file must be a valid shell script
+         and should only contain variable assignments.
    -o=DELIM, --open=DELIM
          Set the opening delimiter. Default is "{{".
    -c=DELIM, --close=DELIM
@@ -93,7 +94,7 @@ This is open source!  Please feel free to contribute.
 
 https://github.com/tests-always-included/mo
 
-MO_VERSION=3.0.3
+MO_VERSION=3.0.4
 EOF
 }