termination book page: fix typo

src/main/resources/data/modularrouters/patchouli_books/book/en_us/entries/router/termination.json

@@ -9,7 +9,7 @@
     },
     {
       "type": "text",
-      "text": "Termination is configured on a per-module basis, by the 'T' button beneath the filter slots. By default, it's inactive; if you switch if on for a module, then $(italic)if/$ the module does any work this router tick, the router will stop there. No further modules (i.e. to the right of this module) will be executed this time round."
+      "text": "Termination is configured on a per-module basis, by the 'T' button beneath the filter slots. By default, it's inactive; if you switch it on for a module, then $(italic)if/$ the module does any work this router tick, the router will stop there. No further modules (i.e. to the right of this module) will be executed this time round."
     },
     {
       "type": "text",
@@ -20,4 +20,4 @@
       "text": "When the router runs, say there's already a stack of Cobblestone in the buffer.  The Void Module will void a Cobblestone, and then the Sender module will send the remaining 63 Cobblestone on to your storage. This is probably not you want.$(p)However, if you switch on Termination on the Void Module, then when it runs, the router will stop for that tick; the Sender module won't run until the Void Module has nothing else to do."
     }
   ]
-}
+}