fix cdd url in docs

Author: inodb

docs/File-Formats.md

@@ -269,7 +269,7 @@ These columns can be in either the patient or sample file.
 ### Custom columns in clinical data
 cBioPortal supports custom columns with clinical data in either the patient or sample file. They should follow the previously described 5-row header format. Be sure to provide the correct `Datatype`, for optimal search, sorting, filtering (in [clinical data tab](https://www.cbioportal.org/study?id=brca_tcga#clinical)) and visualization.
 
-The Clinical Data Dictionary from MSKCC is used to normalize clinical data, and should be followed to make the clinical data comparable between studies. This dictionary provides a definition whether an attribute should be defined on the patient or sample level, as well as provides a name, description and datatype. The data curator can choose to ignore these proposed definitions, but not following this dictionary might make comparing data between studies more difficult. It should however not break any cBioPortal functionality. See GET /api/ at [https://oncotree.mskcc.org/cdd/swagger-ui.html#/](https://oncotree.mskcc.org/cdd/swagger-ui.html#/) for the data dictionary of all known clinical attributes.
+The Clinical Data Dictionary from MSKCC is used to normalize clinical data, and should be followed to make the clinical data comparable between studies. This dictionary provides a definition whether an attribute should be defined on the patient or sample level, as well as provides a name, description and datatype. The data curator can choose to ignore these proposed definitions, but not following this dictionary might make comparing data between studies more difficult. It should however not break any cBioPortal functionality. See GET /api/ at [https://cdd.cbioportal.mskcc.org/swagger-ui.html](https://cdd.cbioportal.mskcc.org/swagger-ui.html#!/clinical-data-dictionary-controller/getClinicalAttributeMetadataBySearchTermsUsingPOST) for the data dictionary of all known clinical attributes.
 
 ### Banned column names
 `MUTATION_COUNT` and `FRACTION_GENOME_ALTERED` are auto populated clinical attributes, and should therefore not be present in clinical data files.