adding WHO ICD-10 Data

raw_data/ICD- 10_(2019 version)/WHO/README.txt

@@ -0,0 +1,24 @@
+This data was obtained by opening each nested portion on the
+left navigation bar at 
+    https://icd.who.int/browse10/2019/en
+and then copying and pasting the data into a text file (icd10-2019.txt). 
+
+
+This text file was then adjusted to get the pipe-separated values version 
+which 
+has the following columns
+- code: the icd-10 code in a normalized format
+- description: The basic description given
+- source: This just says WHO so that it is possible to merge it with other 
+sources.
+
+
+The adjustments were as follows (parenthases include vim search and replace 
+commands used):
+- delete tabls (:%s/\t//g)
+- delete leading spaces (:%s/^\s//)
+- remove excess newlines (:%s/^\n//)
+- remove periods in codes (:%s/\.//)
+- Convert to Pipe-separated values file (:%s/\s/ | /)
+- add column of sources (:%s/\s*$/ | WHO)
+- Type in column headers