Fix identifiers so cross-project links work.

manifest.yaml

@@ -52,7 +52,7 @@ projects:
   -
     categories:
       - 'ta'
-    identifier: 'Wycliffe Associates Translation'
+    identifier: 'intro'
     path: './intro'
     sort: 0
     title: 'Translating with Wycliffe Associates Resources'
@@ -60,7 +60,7 @@ projects:
   -
     categories:
       - 'ta'
-    identifier: 'Translation Theory and Practice'
+    identifier: 'translate'
     path: './translate'
     sort: 1
     title: 'Translation Theory and Practice'
@@ -68,7 +68,7 @@ projects:
   -
     categories:
       - 'ta'
-    identifier: 'translation topics'
+    identifier: 'jit'
     path: './jit'
     sort: 2
     title: 'Translation Topics'