Fixed typos and grammar

R/LDprofile-data.R

R/LR.R

R/L_plus_R.R

R/Zalpha_BetaCDF.R

R/Zalpha_Zscore.R

R/Zalpha_all.R

R/Zalpha_expected.R

R/Zalpha_log_rsq_over_expected.R

R/Zalpha_rsq_over_expected.R

R/Zbeta.R

R/Zbeta_BetaCDF.R

R/Zbeta_Zscore.R

R/Zbeta_expected.R

R/Zbeta_log_rsq_over_expected.R

R/Zbeta_rsq_over_expected.R

R/zalpha.R

man/LDprofile.Rd

man/LR.Rd

man/L_plus_R.Rd

man/Zalpha_BetaCDF.Rd