minor fix

Author: maki49

docs/advanced/input_files/input-main.md

@@ -3924,9 +3924,9 @@ Currently supported: `RPA`, `LDA`, `PBE`, `HSE`, `HF`.
 ### init_fxc
 
 - **Type**: String
-- **Description**:  The method to initalize the xc kernel. 
-  - "gs": Calculate fxc from the ground-state charge density.
-  - "file_fxc": Read the xc kernel $f_\text{xc}$ on grid from the provided files. The following worlds should be the paths of ".cube" files, where the first 3 (spin-aa, spin-ab and spin-bb) will be read in. The parameter [xc_kernel](#xc_kernel) will be invalid. Now only LDA-type kernel is supproted as the potential will be calculated by directly multiplying the transition density.
+- **Description**: The method to initalize the xc kernel. 
+  - "gs": Calculate xc kerenel ($f_\text{xc}$) from the ground-state charge density.
+  - "file_fxc": Read the xc kernel $f_\text{xc}$ on grid from the provided files. The following words should be the paths of ".cube" files, where the first 3 (spin-aa, spin-ab and spin-bb) will be read in. The parameter [xc_kernel](#xc_kernel) will be invalid. Now only LDA-type kernel is supproted as the potential will be calculated by directly multiplying the transition density.
   - "file_chg": Calculate fxc from the charge density read from the provided files. The following words should be the paths of ".cube" files, where the first [nspin]($nspin) files will be read in. 
 - **Default**: "gs"
 

source/module_lr/potentials/pot_hxc_lrtd.cpp

@@ -43,7 +43,7 @@ namespace LR
                     double ef = 0.0;
                     int prenspin = 1;
                     std::vector<double> v2rho2_tmp(nrxx);
-                    ModuleIO::read_vdata_palgrid(GlobalC::Pgrid, GlobalV::MY_RANK, GlobalV::ofs_running, init_fxc[is + 1],
+                    ModuleIO::read_vdata_palgrid(pgrid, GlobalV::MY_RANK, GlobalV::ofs_running, init_fxc[is + 1],
                         v2rho2_tmp.data(), ucell_in->nat);
                     for (int ir = 0;ir < nrxx;++ir) { v2rho2[ir * spinsize + is] = v2rho2_tmp[ir]; }
                 }