I had a look through the xml and I can report the following typos:



-------------------------------------------------------------
AlienRace.BackstoryDef\Backstories_Dog.xml
-------------------------------------------------------------

L47 <Bordie_Child_star.baseDescription>
typo "pay" (should be play)

L119 <Bori_Adult_Hunter.baseDescription>
I think a word is missing somewhere as the second sentence doesn't make sense.

L167 <Bori_hooligan.baseDescription>
typo "steped"

L240 <Bori_b_nurse_officer.baseDescription>
typo "treated" (should be treat)

L275 <Bori_0_soldier.baseDescription>
typo "rifleman" (should be riflemen)

Cemetery misspelled as Cemetary throughout.



--------------------------------------------------------------
AlienRace.BackstoryDef\BackstoryDef_SP.xml
--------------------------------------------------------------
L29 <Sheepawn_Child_Design.baseDescription>
double use of "recreating"

L99 <Sheepawn_Diplomat.baseDescription>
typo "a unexpectedly" (should be "an")

L162 <Sheepawn_Designer.baseDescription>
double use of "clothes"

L168 <Sheepawn_hamburger.titleShort>
typo "hemburger"



----------------------------------------
RecipeDef\Recipes_Orion.xml
----------------------------------------

L5 <Make_Orion.description>
typo "aris"



---------------------------------------------------------------
ResearchProjectDef\RaceName_Research.xml
---------------------------------------------------------------

L20 <Bori_B3.description>
extra "this" before "thousands"

L25 <Bori_B3_1.description>
typo "mosiac" (should be mosaic)

L31 <Bori_B5.description>
should be "the knowledge that" instead of "the knowledge of"

L33 extra "of" before "the dogs"

L52 <Bori_C1.description>
Missing word before "all supply routes"



------------------------------------
ThingDef\Apparel_Dog.xml
------------------------------------

L42 <BD_IndArmHelmet.description>
typo "helment"



------------------------------------
ThingDef\Apparel_SP.xml
------------------------------------

L6 <SP_ChroniclerUniform.description>
typo "Cemetary" (should be Cemetery)

L15 <SP_WorkClothes.description>
typo "were" after "workplace"



---------------------------------------------
ThingDef\Buildings_Furniture.xml
---------------------------------------------

L7 <BD_Bed.description>
typo "typing" (should be tying)



---------------------------------------------
ThingDef\Buildings_Misc.xml
---------------------------------------------

L5 <BR_Spear_Flag.description>
Given as "Hundred's Years War" here, but in RaceName_Research.xml it also appears as "Hundred Years' War" in <Bori_B6.label> and "Hundreds' Year War" in <Bori_O1.description>. Hundred Years' War is the term used for the real conflict between England and France that lasted 116 years.



------------------------------------------------
ThingDef\Buildings_Productions.xml
------------------------------------------------

L13 <SPBD_CosmosOrionWeavingMachine.description>
Typo "An loom" (should be a) , "extreme" should be "extremely"



-----------------------------
ThingDef/weapon.xml
-----------------------------

L13 <BD_LightWeightedBoltActionRifle.description>
Should be "protected" instead of "protect"

L78 <BD_halberd.description>
Should be "breaking" not "break"

L95 <BD_Sniper.description>
Should be "comprised", not "compromised", should end with "inherit it" (not "inherited")

L132 <SP_Staff.description>
Typo "emergenies"

@Leodensian Thanks for going through it, I'll fix it up and upload a patch!

The labels and descriptions for materials in \ThingDef\Items_Resource_Stuff_Leather have been left blank, which, when you mouse over the item in a trade menu, causes the UI to disappear leading to a need to restart the game. Fixed it by putting placeholder info into the label and description fields.