Condensing Miscellaneous Structure/Syntax Rules in Tutorials

What is this task about?

@ConnorWelch-OSU and I were discussing adding a Structure and Syntax page to the tutorials before the sim_parm.rst. There is a lot of miscellaneous information in the current tutorials that is important and could be shoved in here. Some examples that we have seen include

• Footnote mentioning xml block ordering
• the Note at the end of the simulation parameters page about the ending tag etc
• Commodity block being optional
• No hyphens
• Capitalization specifications for tags/names matters
• any syntax related, structural, Cyclus specific stuff

It could be thought of as a mini-rule/guide book before going into the tutorials. This information seems pretty relevant but may get lost.

Why is this task needed?

This task could contribute to issue #442 and could centralize some important but less FC related information.

This is just a small idea and maybe could be handled without a whole separate tutorial page. Other option could include making all offhanded information that is important footnotes for consistency.

Review the current tutorials and sim_parm.rst, along with issue #442, to locate the scattered structure and syntax guidance listed here. Decide whether the material belongs in a new Structure and Syntax page or consistent footnotes, then ensure the selected documentation contains the relevant rules without losing existing information.