Updated README with utf8 note
Updated README with utf8 note

Updated to include a note on using utf8 character set within your database to support special characters.
qlands/onadata,ultimateprogramer/formhub,spatialdev/onadata,piqoni/onadata,eHealthAfrica/formhub,wesley1001/formhub,ehealthafrica-ci/onadata,GeoODK/onadata,SEL-Columbia/formhub,piqoni/onadata,spatialdev/onadata,awemulya/fieldsight-kobocat,makinacorpus/formhub,wesley1001/formhub,mainakibui/kobocat,ehealthafrica-ci/onadata,awemulya/fieldsight-kobocat,jomolinare/kobocat,makinacorpus/formhub,wesley1001/formhub,sounay/flaminggo-test,hnjamba/onaclone,eHealthAfrica/formhub,wesley1001/formhub,mainakibui/kobocat,GeoODK/onadata,kobotoolbox/kobocat,GeoODK/onadata,smn/onadata,kobotoolbox/kobocat,SEL-Columbia/formhub,eHealthAfrica/formhub,ehealthafrica-ci/formhub,qlands/onadata,ultimateprogramer/formhub,mainakibui/kobocat,piqoni/onadata,awemulya/fieldsight-kobocat,ehealthafrica-ci/formhub,kobotoolbox/kobocat,GeoODK/onadata,GeoODK/formhub,smn/onadata,hnjamba/onaclone,ehealthafrica-ci/formhub,sounay/flaminggo-test,smn/onadata,hnjamba/onaclone,hnjamba/onaclone,GeoODK/formhub,ehealthafrica-ci/formhub,SEL-Columbia/formhub,jomolinare/kobocat,eHealthAfrica/onadata,piqoni/onadata,kobotoolbox/kobocat,ehealthafrica-ci/onadata,eHealthAfrica/formhub,makinacorpus/formhub,sounay/flaminggo-test,jomolinare/kobocat,qlands/onadata,smn/onadata,ehealthafrica-ci/onadata,awemulya/fieldsight-kobocat,makinacorpus/formhub,eHealthAfrica/onadata,eHealthAfrica/onadata,spatialdev/onadata,SEL-Columbia/formhub,spatialdev/onadata,mainakibui/kobocat,GeoODK/formhub,jomolinare/kobocat,qlands/onadata,sounay/flaminggo-test,ultimateprogramer/formhub,ultimateprogramer/formhub