Fix NOTE: Malformed Description field

Fixes the NR CMD check NOTE:
  ❯ checking DESCRIPTION meta-information ... NOTE
  Malformed Description field: should contain one or more complete sentences.

DESCRIPTION

@@ -19,7 +19,13 @@ Authors@R: c(
     person("Pfizer Inc", role = c("cph", "fnd"))
     )
 Maintainer: Rammprasad Ganapathy <[email protected]>
-Description: An EDC and Data Standard-agnostic SDTM data transformation engine designed for SDTM programming in R. Powered by metadata sdtm.oak can automate the conversion of raw clinical data to SDTM through standardized mapping  algorithms. SDTM is one of the required standards for data submission to  FDA (U.S.) and PMDA (Japan). SDTM standards are implemented in accordance with the SDTM Implemetation guide as defined by CDISC <https://www.cdisc.org/standards/foundational/sdtmig>
+Description: An EDC and Data Standard-agnostic SDTM data transformation engine
+    designed for SDTM programming in R. Powered by metadata sdtm.oak can
+    automate the conversion of raw clinical data to SDTM through standardized
+    mapping  algorithms. SDTM is one of the required standards for data
+    submission to  FDA (U.S.) and PMDA (Japan). SDTM standards are implemented
+    in accordance with the SDTM Implemetation guide as defined by CDISC
+    <https://www.cdisc.org/standards/foundational/sdtmig>.
 Language: en-US
 License: Apache License (>= 2)
 BugReports: https://github.com/pharmaverse/sdtm.oak/issues